check whether PR into main is from staging

.github/workflows/pr-check.yaml

@@ -0,0 +1,20 @@
+name: Source branch check
+on:
+  pull_request:
+    branches: [main]
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - edited
+jobs:
+  check-main:
+    if: github.base_ref == 'main'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check branches
+        run: |
+          if [ ${{ github.head_ref }} != "staging" ]; then
+            echo "Merge requests to main branch are only allowed from staging branch."
+            exit 1
+          fi

.github/workflows/pre-commit.yaml

@@ -3,7 +3,7 @@
 name: pre-commit
 on:
   pull_request:
-    branches: [master, staging, dev, feat/**, fix/**]
+    branches: [main, master, staging, dev, feat/**, fix/**]
 
 jobs:
   pre-commit:

.github/workflows/test.yaml

@@ -2,7 +2,7 @@ name: test
 
 on:
   pull_request:
-    branches: [master, staging, dev, feat/**, fix/**]
+    branches: [main, master, staging, dev, feat/**, fix/**]
 
 env:
   FOUNDRY_PROFILE: ci