Update CHANGELOG.md

Co-authored-by: Trask Stalnaker <[email protected]>

Author: xiang17

CHANGELOG.md

@@ -7,7 +7,7 @@
   ([#4138](https://github.com/microsoft/ApplicationInsights-Java/pull/4138))
 * Allow disabling spring-webmvc instrumentation
   ([#4109](https://github.com/microsoft/ApplicationInsights-Java/pull/4109))
-* Log as warn invalid JMX metrics
+* Log a warning for invalid JMX metrics
   ([#4161](https://github.com/microsoft/ApplicationInsights-Java/pull/4161))
 * Support for using the AAD Audience from the connection string ([#4121](https://github.com/microsoft/ApplicationInsights-Java/pull/4121))