[cherry-pick][v1.10] Add Restic builder in Dockerfile

[blackpiglet]

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Does your change fix a particular issue?

Fixes #5755

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[codecov-commenter]

Codecov Report

Merging #5765 (0f9f5f0) into release-1.10 (57ffffc) will decrease coverage by 0.02%.
The diff coverage is n/a.

@@               Coverage Diff                @@
##           release-1.10    #5765      +/-   ##
================================================
- Coverage         40.85%   40.83%   -0.03%     
================================================
  Files               239      239              
  Lines             20663    20663              
================================================
- Hits               8442     8437       -5     
- Misses            11604    11609       +5     
  Partials            617      617              

Impacted Files	Coverage Δ
pkg/uploader/provider/kopia.go	52.84% <0.00%> (-4.07%)	⬇️

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