fix: upgrade org.apache.maven:maven-core from 3.6.0 to 3.9.6

Snyk has created this PR to upgrade org.apache.maven:maven-core from 3.6.0 to 3.9.6.

See this package in Maven Repository:
https://mvnrepository.com/artifact/org.apache.maven/maven-core/

See this project in Snyk:
https://app.snyk.io/org/tcurdt/project/6cdc8093-5771-41b5-a9e1-a3aa9813eb26?utm_source=github&utm_medium=referral&page=upgrade-pr

pom.xml

@@ -6,7 +6,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <maven.compiler.target>1.8</maven.compiler.target>
     <maven.scope>compile</maven.scope>
-    <maven.version>3.6.0</maven.version>
+    <maven.version>3.9.6</maven.version>
     <maven.plugin.version>3.10.2</maven.plugin.version>
     <additionalparam>-Xdoclint:none</additionalparam>
   </properties>