Add checks permission to flaky-tests workflow

Slack  https://staffbasehq.slack.com/archives/C04BTKRP6RY/p1773682431140339

Author: soemo

.github/workflows/template_flaky_tests.yml

@@ -34,6 +34,7 @@ jobs:
     name: Flaky-Tests
     runs-on: ubuntu-slim
     permissions:
+      checks: read
       contents: read
     steps:
       - name: Find flaky tests