build(deps): bump org.pitest:pitest-maven from 1.14.4 to 1.15.1

Bumps [org.pitest:pitest-maven](https://github.com/hcoles/pitest) from 1.14.4 to 1.15.1.
- [Release notes](https://github.com/hcoles/pitest/releases)
- [Commits](hcoles/pitest@1.14.4...1.15.1)

---
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]>

pom.xml

@@ -181,7 +181,7 @@
         <plugin>
           <groupId>org.pitest</groupId>
           <artifactId>pitest-maven</artifactId>
-          <version>1.14.4</version>
+          <version>1.15.1</version>
           <configuration>
             <timeoutConstant>8000</timeoutConstant>
             <threads>8</threads>