kubectl-argo-rollouts: flag to allow limiting number of returned results for `get rollout`

[NaurisSadovskis]

Summary + Use-cases

Add a flag --limit n to show last n releases when watching a rollout. We currently keep a history of last 20 revisions and the command fills the entire screen, making it impractical to watch the progress of latest rollout. Status command (kubectl argo rollouts status ROLLOUT) could help, but I would prefer to have the colorised output instead :)

Adding this not to forget - I might get around actually implementing the PR if this is an acceptable feature request.

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[clayvan]

Probably not the biggest issue in the world, but I'm right there with you! Would love this quality of life improvement.