Update grails monorepo to v5.0.0.RC1

Author: renovate-bot

gradle.properties

@@ -15,7 +15,7 @@ servletApiVersion=4.0.1
 spockVersion=2.0-groovy-3.0
 springVersion=5.3.9
 caffeineVersion=2.9.2
-grailsVersion=5.0.0.M2
+grailsVersion=5.0.0.RC1
 grailsAsyncVersion=4.0.0
 slf4jVersion=1.7.32
 javaParserCoreVersion=3.22.1