Update org.apache.maven:maven-core to version 3.9.6 (#2049)

Author: asf-rm

log4j-parent/pom.xml

@@ -142,7 +142,7 @@
     <log4j2-ecs-layout.version>1.5.0</log4j2-ecs-layout.version>
     <log4j2-logstash-layout.version>0.18</log4j2-logstash-layout.version>
     <logback.version>1.4.14</logback.version>
-    <maven.version>3.8.6</maven.version>
+    <maven.version>3.9.6</maven.version>
     <mockito.version>5.8.0</mockito.version>
     <mongodb.version>4.11.1</mongodb.version>
     <nashorn.version>15.4</nashorn.version>

src/changelog/.3.x.x/update_org_apache_maven_maven_core.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<entry xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns="http://logging.apache.org/log4j/changelog"
+       xsi:schemaLocation="http://logging.apache.org/log4j/changelog https://logging.apache.org/log4j/changelog-0.1.2.xsd"
+       type="changed">
+  <issue id="2049" link="https://github.com/apache/logging-log4j2/pull/2049"/>
+  <description format="asciidoc">Update `org.apache.maven:maven-core` to version `3.9.6`</description>
+</entry>