Update sbt to 1.4.9

[scala-steward]

Updates org.scala-sbt:sbt from 1.4.1 to 1.4.9.
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!

Files still referring to the old version number

The following files still refer to the old version number (1.4.1).
You might want to review and update them manually.

containers/release-candidate/setup-container.sh

Ignore 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" } ]

labels: library-update, semver-patch, old-version-remains

[tuxji]

+1

Manually updated containers/release-candidate/setup-container.sh and squashed into PR.

• Do all automated continuous integration checks pass?
  Yes
• Is the update a patch, minor, or major update?
  Patch update. Checked release notes and diffs, saw nothing to be concerned about
• Is the license still compatible with ASF License Policy?
  Yes
• Have any changes been made to LICENSE/NOTICE files that need to be incorporated?
  No
• Have any transitive dependencies been added or changed?
  No

[stevedlawrence]

+1