Add completion support for fish and PowerShell shells

[tuhtah]

Description

Enable the cobra based completion support for the fish and PowerShell shells.

Changes

• Add completion support for fish and powershell

Reference

Fixes #1928

Release Note

Add completion support for fish and PowerShell shells

[linux-foundation-easycla]

• ✅login: tuhtah / (f5f129a)

The committers listed above are authorized under a signed CLA.

[knative-prow]

Hi @tuhtah. Thanks for your PR.

I'm waiting for a knative member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[dsimansk]

/ok-to-test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.58%. Comparing base (9ef220c) to head (f5f129a).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1929   +/-   ##
=======================================
  Coverage   74.58%   74.58%           
=======================================
  Files         207      207           
  Lines       15563    15567    +4     
=======================================
+ Hits        11607    11611    +4     
  Misses       3167     3167           
  Partials      789      789           

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[dsimansk]

/approve
/lgtm

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dsimansk, tuhtah

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• OWNERS [dsimansk]

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[dsimansk]

@tuhtah thanks for the contribution!