Running the unit tests with custom surefire arguments like for example:

`mvn clean jacoco:prepare-agent test -DargLine="-Djava.awt.headless=true"` results in test errors as the `argLine` property that `prepare-agent` customizes is overriden by the CLI one, resulting in no java agent passed to the test execution and so no `jacoco.exec` file present.

For example this will make PCT executions of this plugin fail if the `testJavaArgs` argument is used. A more in depth description can be found on https://www.eclemma.org/jacoco/trunk/doc/prepare-agent-mojo.html and http://www.devll.org/blog/2020/java/jacoco-argline.html