Update the labeler to correctly mark SolidusAdmin issues

[elia]

Summary

I already added the changelog:solidus_admin label.

Checklist

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[codecov]

Codecov Report

Merging #5281 (a4d2600) into main (df68c0c) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #5281   +/-   ##
=======================================
  Coverage   88.70%   88.70%           
=======================================
  Files         563      563           
  Lines       13889    13889           
=======================================
  Hits        12320    12320           
  Misses       1569     1569           

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[rainerdema]

💯

[kennyadsl]

I think we can merge this because it will be needed at some point but, unless I'm missing something, not immediately. In fact we are merging all the PRs against nebulab/admin branch, which won't be part of the changelog.

As I said, I'm ok with it even if it's like this, but this in this case, let's not expect this change to have an immediate effect.

[elia]

@kennyadsl if possible I'd like to merge so that's really easy to use the label to select all PRs related to the admin work, even if they won't show up in the next changelog.