Upgrade: [dependabot] - bump log4j.version from 2.24.2 to 2.24.3

Bumps `log4j.version` from 2.24.2 to 2.24.3.

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

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

Updates `org.apache.logging.log4j:log4j-slf4j2-impl` from 2.24.2 to 2.24.3

Updates `org.apache.logging.log4j:log4j-layout-template-json` from 2.24.2 to 2.24.3

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-api
  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
- dependency-name: org.apache.logging.log4j:log4j-slf4j2-impl
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.logging.log4j:log4j-layout-template-json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -19,7 +19,7 @@
         <maven.compiler.target>21</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <fhir.version>7.6.0</fhir.version>
-        <log4j.version>2.24.2</log4j.version>
+        <log4j.version>2.24.3</log4j.version>
         <fasterxml.version>2.18.2</fasterxml.version>
         <sonar.organization>nhsdigital</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>