ci(release): only allow release on release branch

Author: MGREMY

.github/workflows/release.yml

@@ -19,6 +19,12 @@ jobs:
       issues: write
       pull-requests: write
     steps:
+      - name: Fail if branch is not release
+        if: github.event_name == 'workflow_dispatch' && github.ref != 'refs/heads/release'
+        run: |
+          echo "This workflow should not be triggered with workflow_dispatch on a branch other than release"
+          exit 1
+
       - name: Check out the code 🗄
         uses: actions/checkout@v4
         with: