test(ci): speed up playwright by using container with browsers

[max-nextcloud]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.40%. Comparing base (929a649) to head (5e037e2).
Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #2543   +/-   ##
=========================================
  Coverage     43.40%   43.40%           
  Complexity      882      882           
=========================================
  Files            77       77           
  Lines          3359     3359           
=========================================
  Hits           1458     1458           
  Misses         1901     1901           

[max-nextcloud]

Initializing the container is not significantly faster then just installing the browsers.
Plus the container does not include composer - to it fails to install the php dependencies.