feat: completion --build flag of deploy sub-cmd

[matejvasek]

Adds the --build flag for 'func deploy' to the shell completions

[codecov]

Codecov Report

Merging #802 (b9e98d6) into main (2009073) will decrease coverage by 0.06%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #802      +/-   ##
==========================================
- Coverage   44.41%   44.35%   -0.07%     
==========================================
  Files          47       47              
  Lines        4296     4302       +6     
==========================================
  Hits         1908     1908              
- Misses       2108     2113       +5     
- Partials      280      281       +1     

Impacted Files	Coverage Δ
cmd/completion_util.go	0.00% <0.00%> (ø)
cmd/deploy.go	13.87% <0.00%> (-0.12%)	⬇️
function_buildtype.go	94.44% <0.00%> (-5.56%)	⬇️

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[matejvasek]

@zroubalik @lkingland PTAL

[zroubalik]

/approve

[zroubalik]

/hold until tests pass

[knative-prow-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: matejvasek, zroubalik

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• OWNERS [matejvasek,zroubalik]

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[matejvasek]

/unhold