Bump org.spockframework:spock-core from 1.3-groovy-2.4 to 2.3-groovy-4.0

Bumps org.spockframework:spock-core from 1.3-groovy-2.4 to 2.3-groovy-4.0.

---
updated-dependencies:
- dependency-name: org.spockframework:spock-core
  dependency-type: direct:development
...

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

pom.xml

@@ -48,7 +48,7 @@
         <dependency>
             <groupId>org.spockframework</groupId>
             <artifactId>spock-core</artifactId>
-            <version>1.3-groovy-2.4</version>
+            <version>2.3-groovy-4.0</version>
             <scope>test</scope>
         </dependency>
         <dependency>