Bump actions/checkout in the all-github-action-dependencies group (#139)

Author: dependabot[bot]

.github/workflows/issue_commands.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           repository: "grafana/grafana-github-actions"
           path: ./actions