Update sbt-tpolecat to 0.1.8

[scala-steward]

Updates io.github.davidgregory084:sbt-tpolecat from 0.1.7 to 0.1.8.

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 @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 = "io.github.davidgregory084", artifactId = "sbt-tpolecat" } ]

labels: semver-patch

[codecov]

Codecov Report

Merging #859 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #859   +/-   ##
=======================================
  Coverage   67.03%   67.03%           
=======================================
  Files          88       88           
  Lines        1259     1259           
  Branches       40       40           
=======================================
  Hits          844      844           
  Misses        415      415

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