Update default branch to main

.github/workflows/codeql-analysis.yml

@@ -2,7 +2,7 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ "develop", "master" ]
+    branches: [ "main" ]
   schedule:
     - cron: '38 0 * * 5'
 

pyproject.toml

@@ -37,7 +37,7 @@ classifiers = [
 [project.urls]
 Repository = "https://github.com/earwig/git-repo-updater"
 Issues = "https://github.com/earwig/git-repo-updater/issues"
-Changelog = "https://github.com/earwig/git-repo-updater/blob/master/CHANGELOG"
+Changelog = "https://github.com/earwig/git-repo-updater/blob/main/CHANGELOG"
 
 [project.scripts]
 gitup = "gitup.cli:run"