feat: Add support for remote cache imports/exports

[cpuguy83]

No description provided.

[codecov]

Codecov Report

Patch coverage: 22.85% and project coverage change: +0.07% 🎉

Comparison is base (69206e5) 28.51% compared to head (9a38109) 28.59%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #257      +/-   ##
==========================================
+ Coverage   28.51%   28.59%   +0.07%     
==========================================
  Files          16       16              
  Lines        1487     1490       +3     
==========================================
+ Hits          424      426       +2     
- Misses       1037     1038       +1     
  Partials       26       26              

Files Changed	Coverage Δ
pkg/buildkit/buildkit.go	0.00% <0.00%> (ø)
pkg/pkgmgr/apk.go	45.23% <0.00%> (ø)
pkg/pkgmgr/dpkg.go	32.84% <0.00%> (ø)
pkg/pkgmgr/rpm.go	32.62% <0.00%> (ø)
pkg/patch/patch.go	7.29% <15.90%> (-0.16%)	⬇️
pkg/patch/cmd.go	65.38% <75.00%> (+11.81%)	⬆️

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