Preserve comment lines in the bookmarks file when cleaning

gitup --clean (--cleanup) deletes bookmarks that no longer exist, but it
also removed comment lines from the bookmarks file, which are a supported
feature since v0.5.1. Skip lines beginning with '#' in the cleanup check
so they survive, matching the comment handling used when updating.

Bump github/codeql-action from 4.37.7 to 4.37.8 in the monthly-batch group

Bumps the monthly-batch group with 1 update: [github/codeql-action](https://github.com/github/codeql-action).


Updates `github/codeql-action` from 4.37.7 to 4.37.8
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/v4.37.7...v4.37.8)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-version: 4.37.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: monthly-batch
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump github/codeql-action from 4.37.6 to 4.37.7

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 4.37.6 to 4.37.7.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/v4.37.6...v4.37.7)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-version: 4.37.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump github/codeql-action from 4.37.4 to 4.37.6

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 4.37.4 to 4.37.6.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/v4.37.4...v4.37.6)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-version: 4.37.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump github/codeql-action from 4 to 4.37.4

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 4 to 4.37.4.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/v4...v4.37.4)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-version: 4.37.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump actions/checkout from 6 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump pygments from 2.19.1 to 2.20.0

Bump pytest from 8.4.0 to 9.0.3

Bump gitpython from 3.1.45 to 3.1.50

Bumps [pygments](https://github.com/pygments/pygments) from 2.19.1 to 2.20.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](https://github.com/pygments/pygments/compare/2.19.1...2.20.0)

---
updated-dependencies:
- dependency-name: pygments
  dependency-version: 2.20.0
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.4.0 to 9.0.3.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/8.4.0...9.0.3)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.3
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [gitpython](https://github.com/gitpython-developers/GitPython) from 3.1.45 to 3.1.50.
- [Release notes](https://github.com/gitpython-developers/GitPython/releases)
- [Changelog](https://github.com/gitpython-developers/GitPython/blob/main/CHANGES)
- [Commits](https://github.com/gitpython-developers/GitPython/compare/3.1.45...3.1.50)

---
updated-dependencies:
- dependency-name: gitpython
  dependency-version: 3.1.50
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump actions/dependency-review-action from 4 to 5

Bumps [actions/dependency-review-action](https://github.com/actions/dependency-review-action) from 4 to 5.
- [Release notes](https://github.com/actions/dependency-review-action/releases)
- [Commits](https://github.com/actions/dependency-review-action/compare/v4...v5)

---
updated-dependencies:
- dependency-name: actions/dependency-review-action
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Bump github/codeql-action from 3 to 4

Bump astral-sh/setup-uv from 6 to 7

Bump actions/checkout from 4 to 6

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 3 to 4.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/v3...v4)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) from 6 to 7.
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](https://github.com/astral-sh/setup-uv/compare/v6...v7)

---
updated-dependencies:
- dependency-name: astral-sh/setup-uv
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Enable Dependabot for GH Actions

bump GitPython and Python

Python 3.13 support

CI update

Add Python 3.12 and remove unsupported versions