Update Scala.js

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[sideeffffect]

This is the weirdest thing -- I just can't reproduce the test failure locally, no matter what I do.

[info] - FiberRefSpec
[info]   - Create a new FiberRef with a specified value and check if:
[info]     - the value of all fibers in inherited when running many ZIOs with collectAllPar

It's also quite surprising that locally here it worked: https://github.com/zio/zio/runs/4957906864?check_suite_focus=true

[sideeffffect]

Ready to be merged 🎉