Resolve tests.test_convolutions failure due to relative path resolution
from .utils import TorchImageTestCase2D
ImportError: attempted relative import with no known parent package
# See the License for the specific language governing permissions and
# limitations under the License.
-from .utils import TorchImageTestCase2D
+from tests.utils import TorchImageTestCase2D
from monai.networks.blocks import Convolution, ResidualUnit
