chore(cli): Migrate argo terminate to use API client. See #2116

[alexec]

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this is a chore.
• The title of the PR is (a) conventional, (b) states what changed, and (c) suffixes the related issues number. E.g. "fix(controller): Updates such and such. Fixes #1234".
• I have written unit and/or e2e tests for my change. PRs without these are unlike to be merged.
• Optional. I've added My organization is added to the README.
• I've signed the CLA and required builds are green.

See #2116

[codecov]

Codecov Report

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The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #2280   +/-   ##
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  Coverage          ?   11.39%           
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  Files             ?       71           
  Lines             ?    27903           
  Branches          ?        0           
=========================================
  Hits              ?     3180           
  Misses            ?    24319           
  Partials          ?      404

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