ci: Let required runs be triggered by merge group events (#6563)

Co-authored-by: Bart <11445373+bthomee@users.noreply.github.com>

.github/workflows/check-pr-title.yml

@@ -1,10 +1,13 @@
 name: Check PR title
 
 on:
+  merge_group:
+    types:
+      - checks_requested
   pull_request:
     types: [opened, edited, reopened, synchronize]
     branches: [develop]
 
 jobs:
   check_title:
-    uses: XRPLF/actions/.github/workflows/check-pr-title.yml@943eb8277e8f4b010fde0c826ce4154c36c39509
+    uses: XRPLF/actions/.github/workflows/check-pr-title.yml@a258ab7b68658d0c0787689a31df23c390051a27

.github/workflows/pre-commit.yml

@@ -1,6 +1,9 @@
 name: Run pre-commit hooks
 
 on:
+  merge_group:
+    types:
+      - checks_requested
   pull_request:
   push:
     branches: