Changelog:
==========
-Fixed __hash__() of the C version of the CBORTag type crashing when there's a
recursive reference cycle
-Fixed type annotation for the file object in cbor2.dump(), cbor2.load(),
CBOREncoder and CBORDecoder to be IO[bytes] instead of BytesIO
-Worked around a CPython bug that caused a SystemError to be raised, or even a
buffer overflow to occur when decoding a long text string that contained only
ASCII characters
-Changed the return type annotations of cbor2.load() and cbor2.load() to return
Any instead of object so as not to force users to make type casts
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>