Bump groovy.version from 4.0.18 to 4.0.21 (#983)

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

pom.xml

@@ -108,7 +108,7 @@
         <gogo.jline.version>1.1.8</gogo.jline.version>
         <slf4j.version>2.0.9</slf4j.version>
         <findbugs.version>3.0.2</findbugs.version>
-        <groovy.version>4.0.18</groovy.version>
+        <groovy.version>4.0.21</groovy.version>
         <ivy.version>2.5.2</ivy.version>
         <graal.version>23.1.2</graal.version>
         <graal.plugin.version>21.2.0</graal.plugin.version>