ci: adapt codeql.yml and remove duplicate job from security.yml

codeql.yml (GitHub's Advanced Setup template) adapted for this repo:
- Pin action SHAs (checkout v6.0.2, codeql-action v4.36.0)
- Drop python from the language matrix (no Python in this repo)
- Add conditional libpcap install for the Go matrix entry
  (gopacket requires libpcap-dev; autobuild fails without it)
- Wire in .github/codeql-config.yml for Go (path filters, query
  selection); other languages get an empty config-file value
- Remove boilerplate template comments and the unused manual-build step
- Fix runner expression (no swift, so the macos-latest conditional
  is unnecessary; always ubuntu-latest)

security.yml:
- Remove codeql-analysis job (now handled by codeql.yml)
- Drop codeql-analysis from security-summary needs, summary echo,
  and fail condition

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.github/workflows/security.yml

@@ -83,35 +83,6 @@ jobs:
           sarif_file: semgrep.sarif
         continue-on-error: true
 
-  codeql-analysis:
-    name: CodeQL Analysis
-    runs-on: ubuntu-latest
-    permissions:
-      actions: read
-      contents: read
-      security-events: write
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-
-      - name: Install libpcap
-        run: sudo apt-get install -y libpcap-dev
-
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@7211b7c8077ea37d8641b6271f6a365a22a5fbfa # v4.36.0
-        with:
-          languages: go
-          config-file: ./.github/codeql-config.yml
-
-      - name: Autobuild
-        uses: github/codeql-action/autobuild@7211b7c8077ea37d8641b6271f6a365a22a5fbfa # v4.36.0
-
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@7211b7c8077ea37d8641b6271f6a365a22a5fbfa # v4.36.0
-        with:
-          category: "/language:go"
-
   dependency-review:
     name: Dependency Review
     runs-on: ubuntu-latest
@@ -133,7 +104,7 @@ jobs:
   security-summary:
     name: Security Summary
     runs-on: ubuntu-latest
-    needs: [vulnerability-scan, static-analysis, codeql-analysis]
+    needs: [vulnerability-scan, static-analysis]
     if: always()
     permissions:
       contents: read
@@ -156,17 +127,11 @@ jobs:
             echo "❌ **Static Analysis**: FAILED" >> $GITHUB_STEP_SUMMARY
           fi
 
-          if [[ "${{ needs.codeql-analysis.result }}" == "success" ]]; then
-            echo "✅ **CodeQL Analysis**: PASSED" >> $GITHUB_STEP_SUMMARY
-          else
-            echo "❌ **CodeQL Analysis**: FAILED" >> $GITHUB_STEP_SUMMARY
-          fi
-
           echo "" >> $GITHUB_STEP_SUMMARY
           echo "For detailed results, check the individual job logs above." >> $GITHUB_STEP_SUMMARY
 
       - name: Fail on security issues
-        if: needs.vulnerability-scan.result == 'failure' || needs.static-analysis.result == 'failure' || needs.codeql-analysis.result == 'failure'
+        if: needs.vulnerability-scan.result == 'failure' || needs.static-analysis.result == 'failure'
         run: |
           echo "Security scan detected issues. Please review the results above."
           exit 1