Update dependency org.spockframework:spock-junit4 to v2.4-M7-groovy-2.5

Author: renovate[bot]

gradle/libs.versions.toml

@@ -18,5 +18,5 @@ kotlin-bom = { module = "org.jetbrains.kotlin:kotlin-bom", version.ref = "kotlin
 kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib-jdk8", version.ref = "kotlin" }
 kotlinx-html = { module = "org.jetbrains.kotlinx:kotlinx-html-jvm", version = "0.12.0" }
 maven-model = { module = "org.apache.maven:maven-model", version = "3.9.11" }
-spock = { module = "org.spockframework:spock-junit4", version = "2.4-M5-groovy-3.0" } # 2.4-M5-groovy-4.0
+spock = { module = "org.spockframework:spock-junit4", version = "2.4-M7-groovy-2.5" } # 2.4-M5-groovy-4.0
 xmlunit = { module = "org.xmlunit:xmlunit-matchers", version = "2.11.0" }