Bump groovy-json from 3.0.11 to 3.0.12 (#235)

Bumps [groovy-json](https://github.com/apache/groovy) from 3.0.11 to 3.0.12.
- [Release notes](https://github.com/apache/groovy/releases)
- [Commits](https://github.com/apache/groovy/commits)

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

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

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

plexus-compiler-its/pom.xml

@@ -76,7 +76,7 @@
           <dependency>
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy-json</artifactId>
-            <version>3.0.11</version>
+            <version>3.0.12</version>
           </dependency>
           <dependency>
             <groupId>org.codehaus.groovy</groupId>