Bump pitest-maven from 1.7.2 to 1.7.3

Bumps [pitest-maven](https://github.com/hcoles/pitest) from 1.7.2 to 1.7.3.
- [Release notes](https://github.com/hcoles/pitest/releases)
- [Commits](hcoles/pitest@1.7.2...1.7.3)

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

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

pom.xml

@@ -87,7 +87,7 @@
     <spotbugs-maven-plugin.version>4.4.2.2</spotbugs-maven-plugin.version>
     <findsecbugs-plugin.version>1.11.0</findsecbugs-plugin.version>
     <jacoco-maven-plugin.version>0.8.7</jacoco-maven-plugin.version>
-    <maven-pitest-plugin.version>1.7.2</maven-pitest-plugin.version>
+    <maven-pitest-plugin.version>1.7.3</maven-pitest-plugin.version>
     <pitest-junit5-plugin.version>0.15</pitest-junit5-plugin.version>
     <error-prone.version>2.9.0</error-prone.version>
     <nullaway.version>0.9.2</nullaway.version>