Bump maven-release-plugin from 3.0.0-M1 to 3.0.0-M6

Bumps [maven-release-plugin](https://github.com/apache/maven-release) from 3.0.0-M1 to 3.0.0-M6.
- [Release notes](https://github.com/apache/maven-release/releases)
- [Commits](apache/maven-release@maven-release-3.0.0-M1...maven-release-3.0.0-M6)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-release-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -185,7 +185,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-release-plugin</artifactId>
-					<version>3.0.0-M1</version>
+					<version>3.0.0-M6</version>
 					<configuration>
 						<tagNameFormat>@{project.version}</tagNameFormat>
 						<arguments>-DskipTests=true -Dcbi.jarsigner.skip=false -Pci,generate-p2</arguments>