Merge pull request psalm#270 from lptn/master

Automatically update 3.x branch on changes on master

Author: lptn

.github/workflows/update-3x-branch.yml

@@ -0,0 +1,15 @@
+name: Update next major branch
+on:
+  push:
+    branches:
+      - dev
+jobs:
+  run_action:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Merge Follow Branch
+        uses: toysmoon/follow_branch@1.0.3
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          target-branch: 3.x
+          following-branch: master