ci: redistribute concurrency-cancel guard to read-only check workflows (#12)

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

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

* ci: redistribute canonical scorecard-enforcer.yml (concurrency-cancel guard) (Refs hyperpolymath/standards#122)

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

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

Author: hyperpolymath

.github/workflows/codeql.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: PMPL-1.0
 name: CodeQL Security Analysis
 
 on:
@@ -38,12 +38,12 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@c6f931105cb2c34c8f901cc885ba1e2e259cf745 # v3.28.1
+        uses: github/codeql-action/init@c6f931105cb2c34c8f901cc885ba1e2e259cf745 # v3
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@c6f931105cb2c34c8f901cc885ba1e2e259cf745 # v3.28.1
+        uses: github/codeql-action/analyze@c6f931105cb2c34c8f901cc885ba1e2e259cf745 # v3
         with:
           category: "/language:${{ matrix.language }}"

.github/workflows/scorecard.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: PMPL-1.0
 name: OSSF Scorecard
 on:
   push:

.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
 
@@ -22,19 +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@6c64db94d5b2e09d7e0948fb6bd3166cc6fffbc7 # v3
+        uses: trufflesecurity/trufflehog@6c05c4a00b91aa542267d8e32a8254774799d68d # v3
         with:
-          extra_args: --only-verified --fail
+          # 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
 
@@ -47,7 +49,7 @@ 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: |