Update sbt-sonatype to 2.6

[scala-steward]

Updates org.xerial.sbt:sbt-sonatype from 2.0 to 2.6.

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.

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.xerial.sbt", artifactId = "sbt-sonatype" } ]

[codecov-io]

Codecov Report

Merging #79 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #79   +/-   ##
=======================================
  Coverage   81.25%   81.25%           
=======================================
  Files          20       20           
  Lines         272      272           
=======================================
  Hits          221      221           
  Misses         51       51

Impacted Files	Coverage Δ
core/src/main/scala/libra/ops/quantity.scala	100% <0%> (ø)	⬆️
core/src/main/scala/libra/ops/dimensions.scala	78.78% <0%> (ø)	⬆️

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