feat(ci): add security check to block .claude/ and .vscode/ directories (#1173) (#1180)

* feat(ci): add security check to block .claude/ and .vscode/ directories

Add workflow that calls the security_check_directories action from
cloud-content-ci-automation to fail PRs containing files under .claude/
or .vscode/ directories.

Integrates with all_green_check.yaml as a required job for PRs.

Ref: ACA-6411



* fix(ci): suppress SonarCloud S7637 for reusable actions using @main

Internal reusable actions from ansible-network/github_actions and
ansible-collections/cloud-content-ci-automation use @main refs for
simpler maintenance. Suppress the 'use full commit SHA' rule for
workflow files.



* fix(ci): use correct org and pin action to commit SHA

Address review feedback:
- Change org from ansible-collections to ansible
- Pin to commit SHA 74b5fe87 instead of @main



* docs: add changelog fragment for security check workflow



* Update changelogs/fragments/1173-security-check-workflow.yml

---------



(cherry picked from commit 6bb9cce51b)

Co-authored-by: GomathiselviS <gomathiselvi@gmail.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: Bianca Henderson <beeankha@gmail.com>

.github/workflows/security-check.yaml

@@ -0,0 +1,17 @@
+---
+name: Security Check
+
+on: [workflow_call]
+
+jobs:
+  security-check:
+    name: Block unsafe directories
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Check for blocked directories
+        uses: ansible/cloud-content-ci-automation/.github/actions/security_check_directories@74b5fe870e1d5346c5fcea332b97a6fb26f1ad8a