Upgrade: [dependabot] - bump log4j.version from 2.24.3 to 2.25.2 (#332)

Bumps `log4j.version` from 2.24.3 to 2.25.2.
Updates `org.apache.logging.log4j:log4j-api` from 2.24.3 to 2.25.2

Updates `org.apache.logging.log4j:log4j-core` from 2.24.3 to 2.25.2

Updates `org.apache.logging.log4j:log4j-slf4j2-impl` from 2.24.3 to
2.25.2

Updates `org.apache.logging.log4j:log4j-layout-template-json` from
2.24.3 to 2.25.2


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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>2.25.2</log4j.version>
         <fasterxml.version>2.19.2</fasterxml.version>
         <sonar.organization>nhsdigital</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>