Add remote.WithContext

[jonjohnsonjr]

Fixes #743

This allows passing a context.Context into any remote operations.

[jpreese]

Wow that was fast, I'm super excited! Upgrading to this as soon as it's released 🤣

[jonjohnsonjr]

The trick is to file an issue that's not very hard to fix when I'm procrastinating doing other stuff 😉

[codecov-commenter]

Codecov Report

Merging #744 into master will decrease coverage by 0.29%.
The diff coverage is 68.25%.

@@            Coverage Diff             @@
##           master     #744      +/-   ##
==========================================
- Coverage   79.39%   79.09%   -0.30%     
==========================================
  Files         102      102              
  Lines        4683     4712      +29     
==========================================
+ Hits         3718     3727       +9     
- Misses        534      546      +12     
- Partials      431      439       +8     

Impacted Files	Coverage Δ
pkg/v1/remote/list.go	74.19% <0.00%> (-2.48%)	⬇️
pkg/v1/remote/options.go	80.00% <20.00%> (-8.58%)	⬇️
pkg/v1/remote/catalog.go	64.38% <33.33%> (-3.27%)	⬇️
pkg/v1/remote/image.go	82.95% <50.00%> (-1.76%)	⬇️
pkg/v1/remote/descriptor.go	82.01% <71.42%> (-2.77%)	⬇️
pkg/v1/remote/write.go	67.34% <84.00%> (-0.15%)	⬇️
pkg/v1/remote/check.go	71.42% <100.00%> (+1.42%)	⬆️
pkg/v1/remote/delete.go	61.90% <100.00%> (ø)
pkg/v1/remote/index.go	89.32% <100.00%> (+0.10%)	⬆️

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