Update sbt-scalajs, scalajs-compiler, ... to 1.8.0

[scala-steward]

Updates

• org.scala-js:sbt-scalajs
• org.scala-js:scalajs-compiler
• org.scala-js:scalajs-library
• org.scala-js:scalajs-library_2.13
• org.scala-js:scalajs-test-bridge
• org.scala-js:scalajs-test-bridge_2.13

from 1.7.1 to 1.8.0.
GitHub Release Notes - Version Diff

I'll automatically update this PR to resolve conflicts as long as you don't change it yourself.

If you'd like to skip this version, you can just close this PR. If you have any feedback, just mention me in the comments below.

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labels: library-update, early-semver-minor, semver-spec-minor, commit-count:1

[danicheg]

@armanbilge as ScalaJS-guru, what do you think about having this? Would this mean we need a major release when merging?

[armanbilge]

Merging this would require a minor version bump, i.e. cats 2.8.0. Seems we've already done that actually.

There was a short-lived attempt to pin the Scala.js version to 1.5.1 in #4018, then we joined team upgrade. So let's go ahead with this.

[armanbilge]

BTW, here is one way a project can get stuck on Scala.js 1.7.x: mdoc.js currently does not work for Scala.js 1.8.0 (see scalameta/mdoc#590) and fixing it has proven to be non-trivial (see scalameta/mdoc#597). So until that's resolved I can't merge http4s/http4s-dom#60 without breaking the website.

[armanbilge]

Sorry, I changed my mind. Other projects are having trouble upgrading as well such as outwatch/outwatch#551 and the problem with mdoc.js has proven harder to fix than I expected.

[scala-steward]

Superseded by #4132.