Disable QNNPACK tests on MacOS (#29328)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/29328
Tests are flaky as seen in issue #29326.
Disable until we fix the kernels.
Test Plan:
python test/test_quantized.py TestQNNPackOps
Imported from OSS
Differential Revision: D18358200
fbshipit-source-id: 58f1981799fe8253234fcc7b0540e1c0b6babc15
