Update sbt to 1.9.9

[scala-steward]

About this PR

📦 Updates org.scala-sbt:sbt from 1.9.6 to 1.9.9

📜 GitHub Release Notes - Version Diff

Usage

✅ Please merge!

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-sbt", artifactId = "sbt" } ]

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

dependencyOverrides = [{
  pullRequests = { frequency = "30 days" },
  dependency = { groupId = "org.scala-sbt", artifactId = "sbt" }
}]

^{labels: library-update, early-semver-patch, semver-spec-patch, version-scheme:early-semver, commit-count:1}

[mergify]

Merge Queue Status

Rule: default

---

• ✅ Entered queue — 2026-02-18 08:28 UTC
• ✅ Checks passed · on draft merge queue: embarking master (21a3b1a) and #232 together #315
• ✅ Merged — 2026-02-18 08:30 UTC · at b39c6837bc2c6c2f1bbeca25c52913f6993775f0

This pull request spent 2 minutes 18 seconds in the queue, including 2 minutes 6 seconds running CI.

Required conditions to merge

• check-success~=build \(2.13.\d+\)
• check-success~=build \(3.3.\d+\)