ci: use microsoft playwright image in e2e tests

[Synar]

Close #9738

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 37.78%. Comparing base (8a2b4c9) to head (62fefc8).
Report is 64 commits behind head on dev.

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Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #9741      +/-   ##
==========================================
- Coverage   37.85%   37.78%   -0.08%     
==========================================
  Files         990      994       +4     
  Lines       90921    91185     +264     
  Branches     1176     1174       -2     
==========================================
+ Hits        34415    34450      +35     
- Misses      56052    56281     +229     
  Partials      454      454              

Flag	Coverage Δ
editoast	72.96% <ø> (-0.32%)	⬇️
front	20.08% <ø> (-0.04%)	⬇️
gateway	2.18% <ø> (ø)
osrdyne	3.28% <ø> (ø)
railjson_generator	87.49% <ø> (ø)
tests	86.74% <ø> (ø)

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[Synar]

Before the changes, the playwright installation took 120s to 140s on 3 attempts.
After the changes, out of 3 attempts, all took 80s to 82s.
We will attempt a second speed up, by reusing the test-front image to multistage build the playwright image.

[Synar]

Sadly the multistage approach does not appear to be any faster

The second "fixup" is thus likely to be dropped