Bump pitest-maven from 1.9.3 to 1.11.4

Bumps [pitest-maven](https://github.com/hcoles/pitest) from 1.9.3 to 1.11.4.
- [Release notes](https://github.com/hcoles/pitest/releases)
- [Commits](hcoles/pitest@1.9.3...1.11.4)

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

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

assertj-core/pom.xml

@@ -582,7 +582,7 @@
       <plugin>
         <groupId>org.pitest</groupId>
         <artifactId>pitest-maven</artifactId>
-        <version>1.9.3</version>
+        <version>1.11.4</version>
         <dependencies>
           <dependency>
             <groupId>org.pitest</groupId>