fix(ci): fix Validate stage quote issue

Jenkinsfile

@@ -13,7 +13,7 @@ pipeline {
         stage('Validate') {
             steps {
                 sh 'node --version || true'
-                sh 'cat package.json | python3 -c "import json,sys; p=json.load(sys.stdin); print(\"Expo:\", p[\"dependencies\"].get(\"expo\",\"?\"))"'
+                sh "grep -E '\"expo\"' package.json | head -1 || true"
             }
         }
         stage('Install') {