Bump log4j2Version in /java-to-java/java-grpc-server

Bumps `log4j2Version` from 2.24.2 to 2.24.3.

Updates `org.apache.logging.log4j:log4j-bom` from 2.24.2 to 2.24.3
- [Release notes](https://github.com/apache/logging-log4j2/releases)
- [Changelog](https://github.com/apache/logging-log4j2/blob/2.x/RELEASE-NOTES.adoc)
- [Commits](apache/logging-log4j2@rel/2.24.2...rel/2.24.3)

Updates `org.apache.logging.log4j:log4j-to-slf4j` from 2.24.2 to 2.24.3

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.logging.log4j:log4j-to-slf4j
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

java-to-java/java-grpc-server/build.gradle

@@ -25,7 +25,7 @@ buildscript {
         jaxbApiVersion = '4.0.2'
         mockitoVersion = '4.+'
 
-        log4j2Version = '2.24.2'
+        log4j2Version = '2.24.3'
     }
 
     dependencies {