Add three packages to playwright deps

[bensteinberg]

Although tests are passing, I see

#57 44.39 ╔══════════════════════════════════════════════════════╗
#57 44.39 ║ Host system is missing dependencies to run browsers. ║
#57 44.39 ║ Missing libraries:                                   ║
#57 44.39 ║     libX11-xcb.so.1                                  ║
#57 44.39 ║     libXcursor.so.1                                  ║
#57 44.39 ║     libgtk-3.so.0                                    ║
#57 44.39 ║     libgdk-3.so.0                                    ║
#57 44.39 ╚══════════════════════════════════════════════════════╝

in the build logs; these three packages supply the four libraries in question.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 76.59%. Comparing base (2e0b5b6) to head (f0f6848). Report is 1 commits behind head on develop.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #2041 +/- ## ======================================== Coverage 76.59% 76.59% ======================================== Files 64 64 Lines 7100 7100 ======================================== Hits 5438 5438 Misses 1662 1662 ```

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