Update sbt-sonatype to 2.6#79

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scala-steward wants to merge 3 commits intoto-ithaca:masterfrom

scala-steward:update/sbt-sonatype-2.6

Commits on Oct 10, 2019

Update sbt-sonatype to 2.6
scala-steward
committed

Commits on Nov 27, 2019

Merge remote-tracking branch 'origin/master' into update/sbt-sonatype-2.6
zainab-ali
committed

Commits on Apr 22, 2020

Merge branch 'master' into update/sbt-sonatype-2.6
zainab-ali
authored