Bump pitest-maven from 1.11.5 to 1.11.6

Bumps [pitest-maven](https://github.com/hcoles/pitest) from 1.11.5 to 1.11.6.
- [Release notes](https://github.com/hcoles/pitest/releases)
- [Commits](hcoles/pitest@1.11.5...1.11.6)

---
updated-dependencies:
- dependency-name: org.pitest:pitest-maven
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -52,7 +52,7 @@
     <maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
     <maven-dependency-plugin.version>3.5.0</maven-dependency-plugin.version>
     <maven-resources-plugin.version>3.3.0</maven-resources-plugin.version>
-    <pitest-maven.plugin>1.11.5</pitest-maven.plugin>
+    <pitest-maven.plugin>1.11.6</pitest-maven.plugin>
     <pitest-maven.junit5.plugin>1.1.2</pitest-maven.junit5.plugin>
     <revapi-maven-plugin.version>0.15.0</revapi-maven-plugin.version>
     <revapi-java.version>0.28.1</revapi-java.version>