testing/py3-piexif: test failures on x86

This package has test failures on x86:

Test failures..

======================================================================
ERROR: test_load (s_test.ExifTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "./tests/s_test.py", line 110, in test_load
    self._compare_piexifDict_PILDict(exif, e, p=False)
  File "./tests/s_test.py", line 614, in _compare_piexifDict_PILDict
    self._compare_value(zeroth_ifd[key], pilDict[key])
  File "./tests/s_test.py", line 585, in _compare_value
    self.assertEqual(pack_byte(*v1), v2)
  File "./tests/s_test.py", line 87, in pack_byte
    return struct.pack("B" * len(args), *args)
struct.error: ubyte format requires 0 <= number <= 255

======================================================================
ERROR: test_load_m (s_test.ExifTests)
'load' on memory.
Traceback (most recent call last):
File "./tests/s_test.py", line 118, in test_load_m
self._compare_piexifDict_PILDict(exif, e)
File "./tests/s_test.py", line 614, in _compare_piexifDict_PILDict
self._compare_value(zeroth_ifd[key], pilDict[key])
File "./tests/s_test.py", line 585, in _compare_value
self.assertEqual(pack_byte(*v1), v2)
File "./tests/s_test.py", line 87, in pack_byte
return struct.pack("B" * len(args), *args)
struct.error: argument out of range

======================================================================
ERROR: test_load_unicode_filename (s_test.ExifTests)
Traceback (most recent call last):
File "./tests/s_test.py", line 186, in test_load_unicode_filename
self._compare_piexifDict_PILDict(exif, e, p=False)
File "./tests/s_test.py", line 614, in _compare_piexifDict_PILDict
self._compare_value(zeroth_ifd[key], pilDict[key])
File "./tests/s_test.py", line 585, in _compare_value
self.assertEqual(pack_byte(*v1), v2)
File "./tests/s_test.py", line 87, in pack_byte
return struct.pack("B" * len(args), *args)
struct.error: ubyte format requires 0 <= number <= 255

It has been disabled on x86 for the time being. The same counts for the dependent package py3-nikola.

See: https://build.alpinelinux.org/buildlogs/build-edge-x86/testing/py3-piexif/py3-piexif-1.1.3-r1.log