Merge pull request #352 from grails/renovate/tomcatlog4jversion

Update dependency org.apache.tomcat.embed:tomcat-embed-logging-log4j to v8.5.2

Author: puneetbehl

gradle.properties

@@ -23,7 +23,7 @@ snakeyamlVersion=1.29
 spockVersion=2.0-groovy-3.0
 springBootVersion=2.5.4
 springVersion=5.3.9
-tomcatLog4jVersion=8.5.0
+tomcatLog4jVersion=8.5.2
 tomcatVersion=9.0.52
 webdriverBinariesVersion=1.4