Merge pull request #650 from objectionary/renovate/org.pitest-pitest-maven-1.x

chore(deps): update dependency org.pitest:pitest-maven to v1.20.0

Author: yegor256

pom.xml

@@ -376,7 +376,7 @@
           <plugin>
             <groupId>org.pitest</groupId>
             <artifactId>pitest-maven</artifactId>
-            <version>1.19.6</version>
+            <version>1.20.0</version>
             <executions>
               <execution>
                 <goals>