Bump log4jVersion from 2.21.0 to 2.21.1

Bumps `log4jVersion` from 2.21.0 to 2.21.1.

Updates `org.apache.logging.log4j:log4j-slf4j-impl` from 2.21.0 to 2.21.1

Updates `org.apache.logging.log4j:log4j-core` from 2.21.0 to 2.21.1

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

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

build.gradle

@@ -60,7 +60,7 @@ ext {
 	junit4Version = '4.13.2'
 	junitJupiterVersion = '5.10.0'
 	kafkaVersion = '3.6.0'
-	log4jVersion = '2.21.0'
+	log4jVersion = '2.21.1'
 	micrometerDocsVersion = '1.0.2'
 	micrometerVersion = '1.12.0'
 	micrometerTracingVersion = '1.2.0'