fix: fallback to npm install on npm ci failure due to lockfile drift

.gitea/workflows/code-analysis.yml

@@ -88,7 +88,11 @@ jobs:
           rm -f gitleaks.tar.gz
 
       - name: Install dependencies
-        run: npm ci
+        run: |
+          if ! npm ci; then
+            echo "WARNING: npm ci fehlgeschlagen (Lockfile-Drift?). Fallback auf npm install."
+            npm install
+          fi
 
       - name: Lint
         run: npm run lint