Bump pytorch-lightning
Bumps [pytorch-lightning](https://github.com/PyTorchLightning/pytorch-lightning) from 1.5.10 to 1.6.0.
- [Release notes](https://github.com/PyTorchLightning/pytorch-lightning/releases)
- [Changelog](https://github.com/PyTorchLightning/pytorch-lightning/blob/master/CHANGELOG.md)
- [Commits](https://github.com/PyTorchLightning/pytorch-lightning/compare/1.5.10...1.6.0)
---
updated-dependencies:
- dependency-name: pytorch-lightning
dependency-type: direct:production
...
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