chore(deps): update actions/upload-artifact action to v5

Author: renovate[bot]

.github/workflows/gitleaks.yml

@@ -25,7 +25,7 @@ jobs:
           gitleaks detect --source='/path' --report-format=json --report-path='/path/gitleaks-report.json'
 
       - name: Upload Report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: always()
         with:
           name: gitleaks-report-${{ github.sha }}