Renaming the restic parameters in CLI and resources

[reasonerjt]

Per the design of unified backup repository, the daemonSet should be renamed to node-agent

There are parameters in installation and other subcommands of velero for restic support. We need to rename them to more neutral terms, and add new parameters for kopia as needed.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[reasonerjt]

@Lyndon-Li can this be closed?

[Lyndon-Li]

There is one more open PR connects to this issue #5432, so need to close it after the PR is merged.