Pin nvidia-container-runtime version (#19195)
Summary:
This PR is to fix the CI error:
```
nvidia-docker2 : Depends: nvidia-container-runtime (= 2.0.0+docker18.09.4-1) but 2.0.0+docker18.09.5-1 is to be installed
E: Unable to correct problems, you have held broken packages.
Exited with code 100
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19195
Differential Revision: D14913104
Pulled By: yf225
fbshipit-source-id: d151205f5ffe9cac7320ded3c25baa7e051c3623
