Bump org.apache.groovy:groovy-json from 4.0.18 to 4.0.21 (#111)

Bumps [org.apache.groovy:groovy-json](https://github.com/apache/groovy) from 4.0.18 to 4.0.21.
- [Commits](https://github.com/apache/groovy/commits)

---
updated-dependencies:
- dependency-name: org.apache.groovy:groovy-json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Diff for: pom.xml

@@ -84,7 +84,7 @@
 		<maven.compiler.target>${java.version}</maven.compiler.target>
 
 		<json-path.version>2.9.0</json-path.version>
-		<groovy.version>4.0.18</groovy.version>
+		<groovy.version>4.0.21</groovy.version>
 		<spock.version>2.3-groovy-4.0</spock.version>
 		<cglib-nodep.version>3.3.0</cglib-nodep.version>
 		<objenesis.version>3.3</objenesis.version>