ci(release): remove trigger on PRs from workflow (#21)

.github/workflows/release.yaml

@@ -3,8 +3,6 @@ name: release
 on:
   push:
     tags: ["v[0-9].[0-9]+.[0-9]+"]
-  pull_request:
-    branches: "*"
 
 permissions:
   contents: write
@@ -51,14 +49,13 @@ jobs:
         if: ${{ startsWith(github.ref, 'refs/tags/v') }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
         run: |
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
-          git checkout $BRANCH_NAME
+          git checkout main
           git add CHANGELOG.md
-          git commit -m "chore: update changelog for $BRANCH_NAME"
-          git push origin $BRANCH_NAME
+          git commit -m "chore: update changelog for main branch"
+          git push origin main
 
       - name: Create GitHub Release
         if: ${{ startsWith(github.ref, 'refs/tags/v') }}