Dependency(deps): Bump antlr4-runtime from 4.9.2 to 4.9.3

Bumps [antlr4-runtime](https://github.com/antlr/antlr4) from 4.9.2 to 4.9.3.
- [Release notes](https://github.com/antlr/antlr4/releases)
- [Changelog](https://github.com/antlr/antlr4/blob/master/CHANGES.txt)
- [Commits](https://github.com/antlr/antlr4/compare/4.9.2...4.9.3)

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

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

jplag.parent/pom.xml

@@ -214,7 +214,7 @@
       <dependency>
         <groupId>org.antlr</groupId>
         <artifactId>antlr4-runtime</artifactId>
-        <version>4.9.2</version>
+        <version>4.9.3</version>
       </dependency>
       <dependency>
         <groupId>org.antlr</groupId>