Update scala3-library to 3.2.1

[scala-steward]

Updates org.scala-lang:scala3-library from 3.1.3 to 3.2.1. GitHub Release Notes - Version Diff - Version Diff

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

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Have a fantastic day writing Scala!

Adjust future updates

Add this to your `.scala-steward.conf` file to ignore future updates of this dependency: ``` updates.ignore = [ { groupId = "org.scala-lang", artifactId = "scala3-library" } ] ``` Or, add this to slow down future updates of this dependency: ``` dependencyOverrides = [{ pullRequests = { frequency = "@monthly" }, dependency = { groupId = "org.scala-lang", artifactId = "scala3-library" } }] ```

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