build(deps-dev): bump log4j.version from 2.21.0 to 2.21.1

Bumps `log4j.version` 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:development
  update-type: version-update:semver-patch
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -59,7 +59,7 @@
         <spring.boot.version>2.7.17</spring.boot.version>
         <!-- Logging -->
         <slf4j.version>2.0.9</slf4j.version>
-        <log4j.version>2.21.0</log4j.version>
+        <log4j.version>2.21.1</log4j.version>
         <!-- Testing -->
         <commons-io.version>2.14.0</commons-io.version>
         <jackson.version>2.13.4</jackson.version>