Add retry for dists docker image build

[Felixoid]

Attempt to mitigate infrastructure issues like in https://github.com/mozilla/sccache/actions/runs/24502299252/job/71611929011

[codecov-commenter]

Codecov Report

❌ Patch coverage is 75.86207% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 74.17%. Comparing base (619c72c) to head (34cac05).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
tests/harness/mod.rs	75.86%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2677      +/-   ##
==========================================
+ Coverage   72.83%   74.17%   +1.34%     
==========================================
  Files          68       70       +2     
  Lines       37348    39220    +1872     
==========================================
+ Hits        27201    29092    +1891     
+ Misses      10147    10128      -19     

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