Merge pull request cupy#4972 from kmaehashi/fix-docker

Bump Docker image to use CUDA 11.2

Merge pull request cupy#4966 from emcastillo/bump-docker86

Bump Dockerfile version to v8.6.0

Merge pull request cupy#4763 from cupy/revert-4738-bump-docker-v9.0.0b3

Fix Docker image to use CUDA 11.1

Merge pull request cupy#4762 from emcastillo/bp-4761-v8-remove-cupy-c…

…uda112-doc

[backport] Remove `cupy-cuda112` support from documentation

Merge pull request cupy#4578 from emcastillo/docker-9-b2

Bump Dockerfile version to v9.0.0b2

Merge pull request cupy#4579 from emcastillo/docker-8-4

Bump Dockerfile version to v8.4.0

Merge pull request cupy#4502 from emcastillo/bump-docker9b1

Bump Dockerfile version to v9.0.0b1

Merge pull request cupy#4503 from emcastillo/bump-docker83

Bump Dockerfile version to v8.3.0

Merge pull request cupy#4342 from emcastillo/bump-docker9a2

Bump Docker version to v9.0.0a2

Merge pull request cupy#4343 from emcastillo/bump-docker82

Bump Docker version to v8.2.0