MLE-25617 Bumping audit level check to moderate

The build has been failing because of low-level vulnerabilities due to jsdiff, which is a test-only dependency of mocha. There's no patch for jsdiff yet, so bumping the audit check to moderate level vulnerabilities for now.

Author: rjrudin

Jenkinsfile

@@ -55,7 +55,7 @@ def runAuditReport() {
 		cd node-client-api
 		npm ci
 		rm -rf $WORKSPACE/npm-audit-report.json || true
-		npm audit --audit-level=low --json > $WORKSPACE/npm-audit-report.json
+		npm audit --audit-level=moderate --json > $WORKSPACE/npm-audit-report.json
 	'''
 }