Update sbt to 1.6.0

[scala-steward]

Updates org.scala-sbt:sbt from 1.5.8 to 1.6.0.
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, early-semver-minor, semver-spec-minor, commit-count:1

[codecov-commenter]

Codecov Report

Merging #1043 (9f071cb) into develop (e7dd8d5) will decrease coverage by 0.11%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop    #1043      +/-   ##
===========================================
- Coverage    89.66%   89.55%   -0.12%     
===========================================
  Files          124      124              
  Lines         9912     9912              
  Branches       509      509              
===========================================
- Hits          8888     8877      -11     
- Misses        1024     1035      +11     

Impacted Files	Coverage Δ
...main/scala-2.12-/com/twitter/algebird/compat.scala	66.66% <0.00%> (-16.67%)	⬇️
...in/scala/com/twitter/algebird/scalacheck/Gen.scala	91.66% <0.00%> (-8.34%)	⬇️
...src/main/scala/com/twitter/algebird/Interval.scala	78.26% <0.00%> (-6.96%)	⬇️
...witter/algebird/util/summer/AsyncListMMapSum.scala	96.15% <0.00%> (-3.85%)	⬇️
.../main/scala/com/twitter/algebird/BloomFilter.scala	92.47% <0.00%> (ø)
.../scala/com/twitter/algebird/immutable/BitSet.scala	97.00% <0.00%> (+0.21%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e7dd8d5...9f071cb. Read the comment docs.