Bump org.apache.velocity:velocity-engine-core from 2.3 to 2.4

Bumps org.apache.velocity:velocity-engine-core from 2.3 to 2.4.

---
updated-dependencies:
- dependency-name: org.apache.velocity:velocity-engine-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

modello-plugins/modello-plugin-velocity/pom.xml

@@ -23,7 +23,7 @@
  <dependency>
  <groupId>org.apache.velocity</groupId>
  <artifactId>velocity-engine-core</artifactId>
- <version>2.3</version>
+ <version>2.4</version>
  </dependency>
  </dependencies>
 </project>