fix: also publish release to major branch

Author: jim80net

.github/workflows/release-on-merge-to-main.yml

@@ -25,3 +25,8 @@ jobs:
             @semantic-release/changelog
             @semantic-release/git
             @semantic-release/github
+      - name: Push updates to branch for major version
+        if: steps.semantic.outputs.new_release_published == 'true'
+        run: "git push https://x-access-token:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git HEAD:refs/heads/v${{steps.semantic.outputs.new_release_major_version}}"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}