feat(cli): add --limit flag to cap number of apps per command

[BradMclain]

Example usage move first 5 apps matching filter to cluster prod-au-1

gitops setcluster --filter internal,prod-au-3 --cluster=prod-au-1 --limit=5

Open questions:

• Patched all commands but we could bring it back to just ones we think this could actually be useful
• Might be worth adding something to commit msg to indicate a limit was in effect eg "Move prod-au-3 to cluster 'prod-au-1' (10 of 47)."

[github-actions]

Docker Images

Commit: 309ad2bf3d45cbb73786f9285978fa00ac9d4605

Tag
610829907584.dkr.ecr.ap-southeast-2.amazonaws.com/gitops:test-309ad2b