ci: bump security-scan pin to 73b9edb (actionlint now skips gh-aw locks)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: WomB0ComB0

.github/workflows/security.yml

@@ -21,7 +21,7 @@ permissions:
 
 jobs:
   scan:
-    uses: resq-software/.github/.github/workflows/security-scan.yml@23ce94eabddf963835624451e89baca7ac9db541  # main
+    uses: resq-software/.github/.github/workflows/security-scan.yml@73b9edb8f4f28a99f70ee22eb5e2dd2bf7807c84  # main
     with:
       languages: '["csharp","actions"]'
       submodules: recursive