tools: do not run commit-lint on release proposals

PR-URL: #62523
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

Author: aduh95

.github/workflows/commit-lint.yml

@@ -1,6 +1,10 @@
 name: First commit message adheres to guidelines
 
-on: [pull_request]
+on:
+  pull_request:
+    branches:
+      - main
+      - v[0-9]+.x-staging
 
 env:
   NODE_VERSION: lts/*