Update sbt-sonatype to 3.8

[scala-steward]

Updates org.xerial.sbt:sbt-sonatype from 3.7 to 3.8.

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 #3091 into master will decrease coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3091      +/-   ##
==========================================
- Coverage   93.49%   93.46%   -0.04%     
==========================================
  Files         368      368              
  Lines        6983     6979       -4     
  Branches      195      184      -11     
==========================================
- Hits         6529     6523       -6     
- Misses        454      456       +2

Impacted Files	Coverage Δ
testkit/src/main/scala/cats/tests/Helpers.scala	96% <0%> (-4%)	⬇️
...cala/cats/kernel/instances/FunctionInstances.scala	96.96% <0%> (-3.04%)	⬇️
core/src/main/scala/cats/data/NonEmptyVector.scala	99.13% <0%> (ø)	⬆️
core/src/main/scala/cats/Foldable.scala	100% <0%> (ø)	⬆️
core/src/main/scala/cats/instances/option.scala	100% <0%> (ø)	⬆️
.../src/main/scala/cats/laws/discipline/MiniInt.scala	97.29% <0%> (ø)	⬆️
core/src/main/scala/cats/data/NonEmptyList.scala	99.33% <0%> (ø)	⬆️
core/src/main/scala/cats/Reducible.scala	100% <0%> (ø)	⬆️

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