updating snyk vulnerability badge

Author: poorejc

README.md

@@ -1,7 +1,7 @@
 # Apache Flagon UserALE.js
 
 ![Node.js CI](https://github.com/apache/flagon-useralejs/workflows/Node.js%20CI/badge.svg)
-![Snyk Vulnerabilities for npm package](https://img.shields.io/snyk/vulnerabilities/npm/flagon-userale)
+[![Known Vulnerabilities](https://snyk.io/test/npm/flagon-userale/badge.svg)](https://snyk.io/test/npm/flagon-userale)
 ![Maintenance](https://img.shields.io/maintenance/yes/2023)
 ![npm](https://img.shields.io/npm/v/flagon-userale)
 [![License](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](http://www.apache.org/licenses/LICENSE-2.0)