Update scala-library to 2.13.9 in series/7.3.x

[scalaz-bot]

Updates org.scala-lang:scala-library from 2.13.8 to 2.13.9.
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.

Configure Scala Steward for your repository with a .scala-steward.conf file.

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 = "scala-library" } ]

Or, add this to slow down future updates of this dependency:

dependencyOverrides = [{
  pullRequests = { frequency = "@monthly" },
  dependency = { groupId = "org.scala-lang", artifactId = "scala-library" }
}]

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

[xuwei-k]

🤔

• Use normal mixed-in Product.productIterator scala/scala#10002

[error] scalaz-core: Failed binary compatibility check against org.scalaz:scalaz-core_2.13:7.3.6! Found 1 potential problems
[error]  * extension method productIterator$extension(scala.StringContext)scala.collection.Iterator in object scalaz.Show#ShowInterpolator does not have a correspondent in current version
[error]    filter with: ProblemFilters.exclude[DirectMissingMethodProblem]("scalaz.Show#ShowInterpolator.productIterator$extension")
[error] java.lang.RuntimeException: Failed binary compatibility check against org.scalaz:scalaz-core_2.13:7.3.6! Found 1 potential problems

[xuwei-k]

• Fix 2.13.9 regression which broke binary compatibility of case classes which are also value classes scala/scala#10155

[xuwei-k]

• Synthesize productIterator for AnyVal case classes only scala/scala#10158