resolve rapids-dependency-file-generator warning

[jameslamb]

Description

Contributes to rapidsai/dependency-file-generator#89.

--file_key has been deprecated in rapids-dependency-file-generator for a few months, and I'm looking to fully remove it.

This PR proposes:

• switching this project's uses from --file_key to --file-key
• updating the version of rapids-dependency-file-generator used in pre-commit to its latest release

By Submitting this PR I confirm:

• I am familiar with the Contributing Guidelines.
• When the PR is ready for review, new or existing tests cover these changes.
• When the PR is ready for review, the documentation is up to date with these changes.

[cwharris]

@jameslamb The following changes will need to be made before CI can pass: https://github.com/jameslamb/Morpheus/pull/1

[jameslamb]

Merged, thanks!

[dagardner-nv]

/merge