Update admin build process

[ludeeus]

Breaking change

Proposed change

The image that is currently used is not maintained

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the [development checklist][dev-checklist]
• The code compiles without warnings (code quality chek)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

[ludeeus]

This is alpine, there is no apt to remove 😄

[codecov-commenter]

Codecov Report

Merging #642 (981176c) into dev (fdecb37) will increase coverage by 0.10%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##              dev     #642      +/-   ##
==========================================
+ Coverage   80.08%   80.19%   +0.10%     
==========================================
  Files         111      111              
  Lines        2898     2898              
  Branches      311      311              
==========================================
+ Hits         2321     2324       +3     
+ Misses        450      447       -3     
  Partials      127      127              

Flag	Coverage Δ
unittests	80.19% <ø> (+0.10%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...mon.HassClient/Internal/Net/WebSocketClientImpl.cs	69.44% <0.00%> (+8.33%)	⬆️

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[helto4real]

Thanks alot!