Merge pull request #1455 from SpiNNakerManchester/dependabot/maven/log4j.version-2.25.4

Bump log4j.version from 2.25.3 to 2.25.4

Author: rowleya

pom.xml

@@ -38,7 +38,7 @@ limitations under the License.
 		<testing.version>3.5.5</testing.version>
 
 		<slf4j.version>2.0.17</slf4j.version>
-		<log4j.version>2.25.3</log4j.version>
+		<log4j.version>2.25.4</log4j.version>
 
 		<spring.version>7.0.6</spring.version>
 		<spring.boot.version>4.0.4</spring.boot.version>