run_project_tests: Delete a build directory if it already exists
run_project_tests: Delete a build directory if it already exists

This can happen if you abort a run before the cleanup finishes

QuLogic/meson,mesonbuild/meson,QuLogic/meson,mesonbuild/meson,mesonbuild/meson,pexip/meson,pexip/meson,mesonbuild/meson,QuLogic/meson,mesonbuild/meson,pexip/meson,jpakkane/meson,pexip/meson,mesonbuild/meson,jpakkane/meson,pexip/meson,pexip/meson,jpakkane/meson,jpakkane/meson,pexip/meson,QuLogic/meson,jpakkane/meson,jpakkane/meson,jpakkane/meson,QuLogic/meson,QuLogic/meson,pexip/meson,mesonbuild/meson,QuLogic/meson,jpakkane/meson,pexip/meson,pexip/meson,QuLogic/meson,mesonbuild/meson,mesonbuild/meson,QuLogic/meson,jpakkane/meson,mesonbuild/meson