`cov`, `correlate` functions give SegFault in the end of program execution (freeing resources)

[Alexander-Makaryev]

$ DPNP_QUEUE_GPU=1 pytest tests/third_party/cupy/statistics_tests/test_correlation.py
============================================================================================================ test session starts ============================================================================================================
platform linux -- Python 3.7.7, pytest-5.4.3, py-1.9.0, pluggy-0.13.1
rootdir: /localdisk/work/amakarye/git/dpnp, inifile: setup.cfg
plugins: hypothesis-6.1.1
collecting ...
DPNP: current queue is CPU: 0
DPNP: version: 0.5.0

collected 74 items

tests/third_party/cupy/statistics_tests/test_correlation.py ssss.s...................................................ss.ss.ss.........                                                                                                [100%]

====================================================================================================== 63 passed, 11 skipped in 1.64s =======================================================================================================
Segmentation fault (core dumped)