chore(deps): Bump org.apache.maven:maven-core in /jkube-kit/parent

Bumps [org.apache.maven:maven-core](https://github.com/apache/maven) from 3.6.3 to 3.8.1.
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.6.3...maven-3.8.1)

---
updated-dependencies:
- dependency-name: org.apache.maven:maven-core
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

jkube-kit/parent/pom.xml

@@ -50,7 +50,7 @@
     <version.jnr-unixsocket>0.38.20</version.jnr-unixsocket>
     <version.jsr305>3.0.2</version.jsr305>
     <version.maven-archiver>3.6.1</version.maven-archiver>
-    <version.maven-core>3.6.3</version.maven-core>
+    <version.maven-core>3.8.1</version.maven-core>
     <version.maven-filtering>3.3.1</version.maven-filtering>
     <version.maven-plugin-annotations>3.9.0</version.maven-plugin-annotations>
     <version.networknt.validator>1.0.86</version.networknt.validator>