chore: Bump github.com/docker/docker to v28.0.4 and fix broken API

[alphanota]

Skaffold (github.com/googlecontainertools/skaffold) depends on imgutil as a dependency. We are trying to update to the latest docker package versions but unfortunately there are some braking changes between v26 and v28. This is my attempt at upgrading docker in imgutil and fixing the broken API.

[codecov]

Codecov Report

Attention: Patch coverage is 76.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 38.89%. Comparing base (7ebe5c6) to head (ae863de).
Report is 85 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #288       +/-   ##
===========================================
- Coverage   58.29%   38.89%   -19.39%     
===========================================
  Files          32       36        +4     
  Lines        3694     3294      -400     
===========================================
- Hits         2153     1281      -872     
- Misses       1184     1819      +635     
+ Partials      357      194      -163     

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[alphanota]

Copying @natalieparellano 's comment on the original PR here:

@alphanota thank you for this. We'll need to tread carefully here, as the CNB lifecycle also depends on imgutil, and the last time I tried to bump docker there I ran into compatibility issues with buildkit and kaniko. Unfortunately bumping the buildkit version in kaniko will not be easy as kaniko has fallen into an unmaintained state and that is a whole other story.

We are going to need to do something here, as we can't stay on an old docker version forever. I'll bring this up for discussion at one of our next Working Group meetings.

[pbusko]

@natalieparellano @alphanota since Kaniko has a new release which uses github.com/docker/docker v28.1.1+incompatible as a dependency, should this PR be revisited?

[alphanota]

This PR can be closed now that #290 has upgraded the docker version to v28.1.1