update generate-changelog to push to main instead of the tag

Author: sirkitree

.github/workflows/generate-changelog.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          ref: ${{ github.head_ref }}
+          ref: main
           token: ${{ secrets.CHANGELOG_GITHUB_TOKEN }}
       - name: Generate Changelog
         run: |
@@ -21,13 +21,10 @@ jobs:
             -u ${{ github.repository_owner }} \
             -p ${{ github.event.repository.name }} \
             --token ${{ secrets.CHANGELOG_GITHUB_TOKEN }}
-      - name: Checkout to branch
-        run: |
-          git checkout "${GITHUB_REF#refs/heads/}"
       - name: Commit Changelog
         uses: stefanzweifel/git-auto-commit-action@v5
         with:
           commit_message: "chore: update changelog"
-          branch: ${{ github.head_ref || github.ref_name }}
+          branch: main
           file_pattern: "CHANGELOG.md"
           commit_author: "GitHub Action <actions@github.com>"