fix(deps): update dependency org.spockframework:spock-core to v2.4-groovy-5.0

Author: renovate[bot]

gradle.properties

@@ -17,5 +17,5 @@ projectGroup=io.micronaut.starter
 projectUrl=https\://micronaut.io
 projectVersion=4.10.5-SNAPSHOT
 rockerVersion=2.4.0
-spockVersion=2.3-groovy-4.0
+spockVersion=2.4-groovy-5.0
 title=Micronaut Starter