Use "sonatype-work" as a work directory instead of "nexus-work-dir"

Signed-off-by: Alin Dreghiciu <adreghiciu@gmail.com>
Remove proxy-repo content before IT execution to avoid interference with other ITs

Signed-off-by: Alin Dreghiciu <adreghiciu@gmail.com>
Merge remote-tracking branch 'origin/unify-test-resources-dir' into unify-test-resources-dir-move-files