feat: automate major version tagging

Author: Josh-Sanford

.github/workflows/release_please.yml

@@ -20,3 +20,16 @@ jobs:
           token: ${{ secrets.RELEASE_PLEASE_TOKEN }}
           manifest-file: ".release-please-manifest.json"
           config-file: ".release-please-config.json"
+
+      - name: Checkout code
+        if: ${{ steps.release-please.outputs.release_created }}
+        uses: actions/checkout@v4
+
+      - name: Update major version tag
+        if: ${{ steps.release-please.outputs.release_created }}
+        run: |
+          VERSION=${{ steps.release-please.outputs.major }}
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git tag -fa "v${VERSION}" -m "Update v${VERSION} to ${{ steps.release-please.outputs.tag_name }}"
+          git push origin "v${VERSION}" --force