Increase max time to create Edge browser in tests.

[fedejeanne]

Fixes #1676

[github-actions]

Test Results

   383 files  + 1     383 suites  +1   6m 0s ⏱️ -47s
 4 287 tests +35   4 275 ✅ +33  12 💤 +3  0 ❌  - 1 
12 343 runs  +35  12 248 ✅ +32  95 💤 +4  0 ❌  - 1 

Results for commit 2e3df4c. ± Comparison against base commit d26d0e3.

♻️ This comment has been updated with latest results.

[fedejeanne]

Test failures unrelated: #1523

[HeikoKlare]

@fedejeanne can you please elaborate why this is a proper fix for #1676?
The timeout of 10 seconds for the browser instantiations was intentional. I also faced the problem of intermittend instantiation issues (running into timeout) when creating #672 (which was the reason why I never merged for such a long time), but considered that as an indicator for some actualy bug, as the instantiation should never take longer than 20 seconds. Just imagine that this situation occurs during productive use.
If I remember correctly, the reason why a higher timeout "resolves" the issue is that messages in the OS message queue are dropped when not being processed for a specific amount of time (something around 20 seconds), which is why I expected this to be a symptom of a bug in the message processing of the Edge browser implementation that requires resolution.

[fedejeanne]

It's not a proper fix for a productive issue (I haven't faced any though), it just works for the tests. My main goal was to avoid flaky tests.