[bot][8.13.x]: Bump org.pitest:pitest-maven from 1.2.0 to 1.17.3

Bumps [org.pitest:pitest-maven](https://github.com/hcoles/pitest) from 1.2.0 to 1.17.3.
- [Release notes](https://github.com/hcoles/pitest/releases)
- [Commits](hcoles/pitest@1.2.0...1.17.3)

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

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

build/optaplanner-build-parent/pom.xml

@@ -705,7 +705,7 @@
             <plugin>
               <groupId>org.pitest</groupId>
               <artifactId>pitest-maven</artifactId>
-              <version>1.2.0</version>
+              <version>1.17.3</version>
             </plugin>
           </plugins>
         </pluginManagement>