Bump catalyst[cv] from 20.7 to 21.6 in /requirements

[dependabot-preview]

Bumps catalyst[cv] from 20.7 to 21.6.

Release notes

Sourced from catalyst[cv]'s releases.

Catalyst 21.06

[21.06] - 2021-06-29

Added

• (#1230)
  • FairScale support
  • DeepSpeed support
  • utils.ddp_sync_run function for synchronous ddp run
  • CIFAR10 and CIFAR100 datasets from torchvision (no cv-based requirements)
  • Catalyst Engines demo
• dataset_from_params support in config API (#1231)
• transform from params support for config API added (#1236)
• samplers from params support for config API added (#1240)
• recursive registry.get_from_params added (#1241)
• albumentations integration (#1238)
• Profiler callback (#1226)

Changed

• (#1230)
  • loaders creation now wrapper with utils.ddp_sync_run for utils.ddp_sync_run data preparation
  • runner support stage cleanup: loaders and callbacks will be deleted on the stage end
  • Apex-based engines now support both APEXEngine and ApexEngine registry names

Fixed

• multiprocessing in minimal tests hotfix (#1232)
• Tracing callback hotfix (#1234)
• Engine hotfix for predict_loader (#1235)
• (#1230)
  • Hydra hotfix due to 1.1.0 version changes
• HuberLoss name conflict for pytorch 1.9 hotfix (#1239)

Contributors ❤️

@​bagxi @​y-ksenia @​ditwoo @​BorNick @​Inkln

Catalyst 21.05

[21.05] - 2021-05-31

Added

• Reinforcement learning tutorials (#1205)
• customization demo (#1207)
• FAQ docs: multiple input and output keys, engine tutorial (#1202)
• minimal Config API example (#1215)
• Distributed RL example (Catalyst.RL 2.0 concepts) (#1224)
• SklearnCallback as integration of sklearn metrics (#1198)

... (truncated)

Commits

• 2c4bf1f pre-release
• 19455e4 pre-release
• 08f7250 Data API update (PR ensemble) (#1237)
• 9283e69 limited tensorboardX version (#1246)
• 7b4bd10 Profiler callback (#1226)
• e7a2d8d updated changelog; fixed ci/cd tests (#1245)
• bc7ae8b Add albumentations to registry (#1238)
• 7f63545 Engines refactoring (#1243)
• dfb8d32 fix: HuberLoss workaround added (#1239)
• f69c292 Update README.md
• Additional commits viewable in compare view

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Superseded by #67.