ci: redistribute canonical secret-scanner.yml (concurrency-cancel guard) (Refs hyperpolymath/standards#122)

Author: hyperpolymath

.github/workflows/secret-scanner.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: PMPL-1.0
 # Prevention workflow - scans for hardcoded secrets before they reach main
 name: Secret Scanner
 
@@ -22,21 +22,21 @@ jobs:
   trufflehog:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4
         with:
           fetch-depth: 0  # Full history for scanning
 
       - name: TruffleHog Secret Scan
-        uses: trufflesecurity/trufflehog@37b77001d0174ebec2fcca2bd83ff83a6d45a3ab # v3
+        uses: trufflesecurity/trufflehog@6c05c4a00b91aa542267d8e32a8254774799d68d # v3
         with:
-          # The action already passes --fail itself; repeating it errors
-          # ("flag 'fail' cannot be repeated"). Only pass --only-verified.
+          # The v3 action injects --fail automatically on pull_request events.
+          # Passing --fail here triggers "flag 'fail' cannot be repeated".
           extra_args: --only-verified
 
   gitleaks:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4
         with:
           fetch-depth: 0
 
@@ -49,12 +49,12 @@ jobs:
   rust-secrets:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4
 
       - name: Check for hardcoded secrets in Rust
         run: |
           if ! find . -name Cargo.toml -not -path './target/*' -print -quit | grep -q .; then
-            echo 'No Cargo.toml found - skipping Rust secrets check'
+            echo 'No Cargo.toml found — skipping Rust secrets check'
             exit 0
           fi
           # Patterns that suggest hardcoded secrets