Standard weekly patch release

[1.5.9] - 2022-01-20

Fixed

• Pinned sphinx-autodoc-typehints with <v1.15 (#11400)
• Skipped testing with PyTorch 1.7 and Python 3.9 on Ubuntu (#11217)
• Fixed type promotion when tensors of higher category than float are logged (#11401)
• Fixed the format of the configuration saved automatically by the CLI's SaveConfigCallback (#11532)

Changed

• Changed LSFEnvironment to use LSB_DJOB_RANKFILE environment variable instead of LSB_HOSTS for determining node rank and main address (#10825)
• Disabled sampler replacement when using IterableDataset (#11507)

Contributors

@ajtritt @akihironitta @carmocca @rohitgr7

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