Update sbt to 1.3.0

[scala-steward]

Updates org.scala-sbt:sbt from 1.2.8 to 1.3.0.

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 @scala-steward in the comments below.

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: semver-minor

[codecov]

Codecov Report

Merging #880 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #880   +/-   ##
=======================================
  Coverage   66.98%   66.98%           
=======================================
  Files          88       88           
  Lines        1260     1260           
  Branches       38       38           
=======================================
  Hits          844      844           
  Misses        416      416

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