Fix two unlikely reference leaks in _hashopenssl. The leaks only occur in
out-of-memory cases. Thanks to Charalampos Stratakis.
Signed-off-by: Christian Heimes <christian@python.org>

https://bugs.python.org/issue36179.
(cherry picked from commit b7bc283a)
Co-authored-by: Christian Heimes <christian@python.org>



https://bugs.python.org/issue36179