Bump ST4 from 4.3.3 to 4.3.4

Bumps [ST4](https://github.com/antlr/stringtemplate4) from 4.3.3 to 4.3.4.
- [Release notes](https://github.com/antlr/stringtemplate4/releases)
- [Changelog](https://github.com/antlr/stringtemplate4/blob/master/CHANGES.txt)
- [Commits](antlr/stringtemplate4@4.3.3...ST4-4.3.4)

---
updated-dependencies:
- dependency-name: org.antlr:ST4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -281,7 +281,7 @@
             <dependency>
                 <groupId>org.antlr</groupId>
                 <artifactId>ST4</artifactId>
-                <version>4.3.3</version>
+                <version>4.3.4</version>
                 <scope>compile</scope>
             </dependency>
             <!-- or uses different version then spring boot, explicitly overwrite version -->