Use `pytest.skipif` to properly report skipped CRC32C codec tests#740

agriyakhetarpal wants to merge 1 commit intozarr-developers:mainzarr-developers/numcodecs:mainfrom

agriyakhetarpal:fix/raise-pytest-skips-on-crc32cagriyakhetarpal/numcodecs:fix/raise-pytest-skips-on-crc32cCopy head branch name to clipboard