enhance: any status, error wrapping, and fetch improvements

[ecrupper]

A few things:

• Supplying any for the status will allow for users to restart the latest build on a given branch regardless of its status without having to enumerate all statuses
• Return err when failing to restart a target build
• Default depth of 50 instead of 500 for builds searching + early exiting the pagination loop if a build is found early. No need to grab 500 builds when the first one is the desired status.

Closes go-vela/community#220
Closes go-vela/community#981

[codecov]

Codecov Report

Attention: Patch coverage is 36.00000% with 16 lines in your changes missing coverage. Please review.

Project coverage is 35.04%. Comparing base (0ffe39f) to head (849ff94).

Files	Patch %	Lines
cmd/vela-downstream/main.go	0.00%	8 Missing ⚠️
cmd/vela-downstream/plugin.go	38.46%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #142      +/-   ##
==========================================
- Coverage   35.34%   35.04%   -0.31%     
==========================================
  Files           6        6              
  Lines         348      351       +3     
==========================================
  Hits          123      123              
- Misses        223      226       +3     
  Partials        2        2              

Files	Coverage Δ
cmd/vela-downstream/build.go	100.00% <100.00%> (ø)
cmd/vela-downstream/config.go	100.00% <ø> (ø)
cmd/vela-downstream/repo.go	100.00% <100.00%> (ø)
cmd/vela-downstream/main.go	0.00% <0.00%> (ø)
cmd/vela-downstream/plugin.go	34.06% <38.46%> (+1.07%)	⬆️

[KellyMerrick]

lgtm