Update owasp-zap-scan.yml

.github/workflows/owasp-zap-scan.yml

@@ -1,5 +1,6 @@
 steps:
   - name: OWASP ZAP Scan
+    runs-on: ubuntu-latest
     uses: zaproxy/action-baseline@v0.4.0
     with:
       target: 'https://boards.wekan.team/sign-in'