Request completion for `criu` command

[eval-exec]

Describe the feature/solution

Request completion for criu command.

Maintenance (please complete the following information)

• This is a request for new completion
• Link to upstream project query about shipping the completion: https://github.com/checkpoint-restore/criu

[akinomyoga]

• Link to upstream project query about shipping the completion: https://github.com/checkpoint-restore/criu

The provided link is not a link to a query about shipping the completion in the upstream. Please first ask the upstream about whether they can ship a completion setting. After that, please update the link.

edit: I have unchecked the item.

[akinomyoga]

Also, the issue template should have included the following sentence.

See CONTRIBUTING.md, many of the considerations for new completions

Have you read CONTRIBUTING.md? Please check the second paragraph of CONTRIBUTING.md:

bash-completion/CONTRIBUTING.md

Lines 6 to 10 in c7e6321

	However, before submitting a completion to us, first consider submitting it to
	the project that ships the commands your completion is for. Having the
	completion shipped along with the command opens up some liberties we don't have
	if the completion is included with bash-completion. For example, we generally

This actually also applies to the request for a new completion. Have you aksed if the upstream can ship the completion by themselves? I searched for any related issues or pull requests in the upstream repository, but I could not find any.