fix: handle staging branch

Signed-off-by: Agustín Ramiro Díaz <[email protected]>

.github/workflows/only-merge-release-branches-to-main.yml

@@ -5,17 +5,22 @@ on:
     types: [opened, synchronize, reopened, edited]
     branches:
       - main
+      - staging
 
 jobs:
   validate-pr-source-branch:
     runs-on: ubuntu-latest
     steps:
       - name: Check if source branch is a release branch
         run: |
+          if [[ ${{ github.event.pull_request.base.ref }} == "staging" ]]; then
+              echo "Target branch is staging"
+              exit 0
+          fi
           if [[ ${{ github.event.pull_request.head.ref }} =~ ^release/.*$ ]]; then
-            echo "Source branch is a release branch"
-            exit 0
+              echo "Source branch is a release branch"
+              exit 0
           else
-            echo "Source branch is not a release branch"
-            exit 1
+              echo "Source branch is not a release branch"
+              exit 1
           fi