Update sbt to 1.4.3

[scala-steward]

Updates org.scala-sbt:sbt from 1.4.2 to 1.4.3.
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!

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

[codecov]

Codecov Report

Merging #406 (1382936) into master (8ca87c8) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #406   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           15        15           
  Lines          388       388           
  Branches        15        15           
=========================================
  Hits           388       388           

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