Upgrade: [dependabot] - bump log4j.version from 2.24.3 to 2.25.0

Bumps `log4j.version` from 2.24.3 to 2.25.0.

Updates `org.apache.logging.log4j:log4j-api` from 2.24.3 to 2.25.0

Updates `org.apache.logging.log4j:log4j-core` from 2.24.3 to 2.25.0

Updates `org.apache.logging.log4j:log4j-slf4j2-impl` from 2.24.3 to 2.25.0

Updates `org.apache.logging.log4j:log4j-layout-template-json` from 2.24.3 to 2.25.0

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-api
  dependency-version: 2.25.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-version: 2.25.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.logging.log4j:log4j-slf4j2-impl
  dependency-version: 2.25.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.logging.log4j:log4j-layout-template-json
  dependency-version: 2.25.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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>7.6.1</fhir.version>
-        <log4j.version>2.24.3</log4j.version>
+        <log4j.version>2.25.1</log4j.version>
         <fasterxml.version>2.19.1</fasterxml.version>
         <sonar.organization>nhsdigital</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>