update dependencies

Author: hauner

gradle/libs.versions.toml

@@ -25,8 +25,8 @@ kotest-runner = { module = "io.kotest:kotest-runner-junit5" }
 kotest-table = { module = "io.kotest:kotest-assertions-table" }
 mockk = "io.mockk:mockk:1.14.7"
 
-groovy-bom = "org.apache.groovy:groovy-bom:4.0.28"
-spock = "org.spockframework:spock-core:2.4-M6-groovy-4.0"
+groovy-bom = "org.apache.groovy:groovy-bom:5.0.3"
+spock = "org.spockframework:spock-core:2.4-groovy-5.0"
 
 # for buildSrc convention plugins
 plugin-build = { module = "io.openapiprocessor:build-plugins", version.ref = "build-plugins" }