fix: checkout HEAD first

Author: rrrodzilla

.github/workflows/changelog.yml

@@ -14,6 +14,7 @@ jobs:
           fetch-tags: true
           fetch-depth: 0
           repository: "Govcraft/rust-docs-mcp-server"
+      - run: git checkout HEAD^
 
       - name: Install gitchglog
         run: |
@@ -27,7 +28,6 @@ jobs:
         run: |
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git checkout main
           git add './CHANGELOG.md'
           git commit -m "chore(docs): update CHANGELOG for latest tag"
-          git push origin main
+          git push origin HEAD:main