Merge pull request #364 from grails/renovate/grailsgradlepluginversion

Update dependency org.grails:grails-gradle-plugin to v5.0.0.RC2

Author: puneetbehl

gradle.properties

@@ -3,7 +3,7 @@ chromeDriverVersion=2.44
 gebVersion=2.3
 geckodriverVersion=0.23.0
 gormVersion=7.1.0.RC3
-grailsGradlePluginVersion=5.0.0.RC1
+grailsGradlePluginVersion=5.0.0.RC2
 groovyVersion=3.0.7
 h2Version=1.4.200
 hibernate5Version=5.5.7.Final