Bump antlr.version from 4.11.1 to 4.12.0 (#7664)

Bumps `antlr.version` from 4.11.1 to 4.12.0.

Updates `antlr4-maven-plugin` from 4.11.1 to 4.12.0
- [Release notes](https://github.com/antlr/antlr4/releases)
- [Changelog](https://github.com/antlr/antlr4/blob/master/CHANGES.txt)
- [Commits](antlr/antlr4@4.11.1...4.12.0)

Updates `antlr4-runtime` from 4.11.1 to 4.12.0
- [Release notes](https://github.com/antlr/antlr4/releases)
- [Changelog](https://github.com/antlr/antlr4/blob/master/CHANGES.txt)
- [Commits](antlr/antlr4@4.11.1...4.12.0)

---
updated-dependencies:
- dependency-name: org.antlr:antlr4-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.antlr:antlr4-runtime
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pom.xml

@@ -95,7 +95,7 @@ THE SOFTWARE.
     <spotbugs.threshold>Medium</spotbugs.threshold>
 
     <access-modifier.version>1.30</access-modifier.version>
-    <antlr.version>4.11.1</antlr.version>
+    <antlr.version>4.12.0</antlr.version>
     <bridge-method-injector.version>1.25</bridge-method-injector.version>
     <spotless.version>2.33.0</spotless.version>
     <!-- Make sure to keep the jetty-maven-plugin version in war/pom.xml in sync with the Jetty release in Winstone: -->