[RuntimeEnv] Always uninstall ray before installing ray

[harryge00]

Description

Briefly describe what this PR accomplishes and why it's needed.

1. Always uninstall ray before installing ray, because users' containers may have installed ray, which will be conflicted with hosts' ant-ray

[gemini-code-assist]

Code Review

This pull request introduces a change to always uninstall existing ray, ant-ray, and ant-ray-nightly packages before installing a new version. This is achieved by adding an uninstall_ray function and calling it before install_ray_package. The change is sound and helps prevent conflicts with pre-existing installations in user containers. My main feedback is to add error handling to the new uninstall_ray function to ensure that the script fails fast if the uninstallation process encounters an error, preventing potential issues with the subsequent installation.

[ffbin]

LGTM

[ffbin]

LGTM

[github-actions]

This pull request has been automatically marked as stale because it has not had
any activity for 14 days. It will be closed in another 14 days if no further activity occurs.
Thank you for your contributions.

You can always ask for help on our discussion forum or Ray's public slack channel.

If you'd like to keep this open, just leave any comment, and the stale label will be removed.

[github-actions]

This pull request has been automatically closed because there has been no more activity in the 14 days
since being marked stale.

Please feel free to reopen or open a new pull request if you'd still like this to be addressed.

Again, you can always ask for help on our discussion forum or Ray's public slack channel.

Thanks again for your contribution!