[llvm] workflows: Add require-release-manager composite action (PR #194758)

[via llvm-commits]

================
@@ -0,0 +1,19 @@
+name: Test
+on:
+  push:
+
+
+jobs:
+  test-require-release-manager:
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout at de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+          sparse-checkout: .github/workflows/
+      - name: Test
+        uses: ./.github/workflows/require-release-manager
+        with:
+          LLVM_TOKEN_GENERATOR_CLIENT_ID: ${{ secrets.RELEASE_TASKS_USER_TOKEN }}
+          LLVM_TOKEN_GENERATOR_PRIVATE_KEY: ${{ secrets.RELEASE_TASKS_USER_TOKEN }}
----------------
github-advanced-security[bot] wrote:

## CodeQL / Workflow does not contain permissions

Actions job or workflow does not limit the permissions of the GITHUB_TOKEN. Consider setting an explicit permissions block, using the following as a minimal starting point: {{contents: read}}

[Show more details](https://github.com/llvm/llvm-project/security/code-scanning/1834)

https://github.com/llvm/llvm-project/pull/194758