Caching multi-stage and multi-platform Docker BuildX image builds

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (893e47f) 96.94% compared to head (4134a05) 96.94%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #480 +/- ## ========================================= Coverage 96.94% 96.94% Complexity 820 820 ========================================= Files 65 65 Lines 2681 2681 Branches 279 279 ========================================= Hits 2599 2599 Misses 49 49 Partials 33 33 ```