Create wait-for-checks.yml

Fake workflow to test the `wait-for-checks` feature.
refined-github/refined-github#5465 (comment)

Author: cheap-glitch

.github/workflows/wait-for-checks.yml

@@ -0,0 +1,20 @@
+name: wait-for-checks
+
+on:
+	push:
+		branches:
+			- wait-for-checks
+
+jobs:
+	sleep:
+		runs-on: ubuntu-latest
+		steps:
+			- run: sleep 1
+			- run: sleep 1
+			- run: sleep 1
+	check-commit-message:
+		runs-on: ubuntu-latest
+		steps:
+			- run: sleep 10
+			- if: contains(github.event.head_commit.message, "FAIL")
+			  run: exit 1