Bugfix: Test execution stuck if a maven project do not have the neotest-java directory (first execution or after the mvn clean)

[olva0503]

I've faced an issue that leads a test execution to the error because classpath.txt do not exist in target directory. I've found that the row which I'm proposing to return back have been removed at commit 48efda01d1b9daff8c15322631f26b533d005336 . I presume it was done by mistake

[rcasia]

Thanks, good catch! @olva0503