Update scala-collection-compat to 2.9.0

[scala-steward]

Updates org.scala-lang.modules:scala-collection-compat from 2.8.1 to 2.9.0.
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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Adjust future updates

Add this to your .scala-steward.conf file to ignore future updates of this dependency:

updates.ignore = [ { groupId = "org.scala-lang.modules", artifactId = "scala-collection-compat" } ]

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

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

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

[codecov]

Codecov Report

Merging #264 (3605e32) into master (93fc600) will not change coverage.
The diff coverage is n/a.

❗ Current head 3605e32 differs from pull request most recent head d679941. Consider uploading reports for the commit d679941 to get more accurate results

@@           Coverage Diff           @@
##           master     #264   +/-   ##
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  Coverage   89.50%   89.50%           
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  Files          34       34           
  Lines         629      629           
  Branches       64       64           
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  Hits          563      563           
  Misses         66       66