Bump org.spockframework:spock-core from 2.3-groovy-4.0 to 2.4-groovy-4.0

Bumps [org.spockframework:spock-core](https://github.com/spockframework/spock) from 2.3-groovy-4.0 to 2.4-groovy-4.0.
- [Release notes](https://github.com/spockframework/spock/releases)
- [Changelog](https://github.com/spockframework/spock/blob/master/docs/release_notes.adoc)
- [Commits](https://github.com/spockframework/spock/commits)

---
updated-dependencies:
- dependency-name: org.spockframework:spock-core
  dependency-version: 2.4-groovy-4.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

build.gradle.kts

@@ -19,7 +19,7 @@ repositories {
 dependencies {
   api("ch.qos.logback:logback-classic:${libs.versions.logbackVersionrange.get()}!!${libs.versions.logback.get()}")
   implementation("org.slf4j:slf4j-api:${libs.versions.slf4jVersionrange.get()}!!${libs.versions.slf4j.get()}")
-  testImplementation("org.spockframework:spock-core:2.3-groovy-4.0")
+  testImplementation("org.spockframework:spock-core:2.4-groovy-4.0")
   testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 }