[image-host] Dynamic snapcraft filters

[tobe2098]

Adjustments to previous PR #4438.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.46%. Comparing base (d5284b2) to head (b4f4d6d).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4477   +/-   ##
=======================================
  Coverage   89.46%   89.46%           
=======================================
  Files         240      240           
  Lines       13829    13831    +2     
=======================================
+ Hits        12372    12374    +2     
  Misses       1457     1457           

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[ricab]

Yep, thank you @tobe2098!

[secondary]

[ricab]

Oh the category should be [image-host] in the commit message.e