Add jacoco coverage reporting

.circleci/config.yml

@@ -26,6 +26,8 @@ commands:
           name: Run Maven
           command: |
             mvn -s .circleci/mvn-settings.xml << parameters.maven_subcommand >>
+      - store_artifacts:
+          path: target/site/jacoco
       - run:
           name: Save test results
           command: |
@@ -44,7 +46,7 @@ jobs:
     executor: java17
     steps:
       - run_maven:
-          maven_subcommand: test
+          maven_subcommand: verify
       - slack/notify:
           event: fail