ci(security): pin rustsec audit action and supersede #588 (#592)

* fix(workflows): standardize runner configuration for security jobs

* ci(actionlint): add Blacksmith runner label to config

Add blacksmith-2vcpu-ubuntu-2404 to actionlint self-hosted-runner labels config
to suppress "unknown label" warnings during workflow linting.

This label is used across all workflows after the Blacksmith migration.

* fix(actionlint): adjust indentation for self-hosted runner labels

* feat(security): enhance security workflow with CodeQL analysis steps

* fix(security): update CodeQL action to version 4 for improved analysis

* fix(security): remove duplicate permissions in security workflow

* fix(security): revert CodeQL action to v3 for stability

The v4 version was causing workflow file validation failures.
Reverting to proven v3 version that is working on main branch.

* fix(security): remove duplicate permissions causing workflow validation failure

The permissions block had duplicate security-events and actions keys,
which caused YAML validation errors and prevented workflow execution.

Fixes: workflow file validation failures on main branch

* fix(security): remove pull_request trigger to reduce costs

* fix(security): restore PR trigger but skip codeql on PRs

* fix(security): resolve YAML syntax error in security workflow

* refactor(security): split CodeQL into dedicated scheduled workflow

* fix(security): update workflow name to Rust Package Security Audit

* fix(codeql): remove push trigger, keep schedule and on-demand only

* feat(codeql): add CodeQL configuration file to ignore specific paths

* Potential fix for code scanning alert no. 39: Hard-coded cryptographic value

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

* fix(ci): resolve auto-response workflow merge markers

* fix(build): restore ChannelMessage reply_target usage

* ci(workflows): run workflow sanity on workflow pushes for all branches

* ci(workflows): rename auto-response workflow to PR Auto Responder

* ci(workflows): require owner approval for workflow file changes

* ci: add lint-first PR feedback gate

* ci(workflows): split label policy checks from workflow sanity

* ci(workflows): consolidate policy and rust workflow setup

* ci: add safe pull request intake sanity checks

* ci(security): switch audit to pinned rustsec audit-check

---------

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

.github/workflows/security.yml

@@ -16,6 +16,7 @@ permissions:
     contents: read
     security-events: write
     actions: read
+    checks: write
 
 env:
     CARGO_TERM_COLOR: always
@@ -23,13 +24,14 @@ env:
 jobs:
     audit:
         name: Security Audit
-        uses: ./.github/workflows/rust-reusable.yml
-        with:
-            timeout_minutes: 20
-            toolchain: stable
-            run_command: |
-                cargo install --locked cargo-audit --version 0.22.1
-                cargo audit
+        runs-on: blacksmith-2vcpu-ubuntu-2404
+        timeout-minutes: 20
+        steps:
+            - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+
+            - uses: rustsec/audit-check@69366f33c96575abad1ee0dba8212993eecbe998 # v2.0.0
+              with:
+                  token: ${{ secrets.GITHUB_TOKEN }}
 
     deny:
         name: License & Supply Chain