Update sbt-tpolecat to 0.1.7

[scala-steward]

Updates io.github.davidgregory084:sbt-tpolecat from 0.1.6 to 0.1.7.

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-io]

Codecov Report

Merging #575 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #575   +/-   ##
=======================================
  Coverage   89.46%   89.46%           
=======================================
  Files          68       68           
  Lines        2135     2135           
  Branches      102      102           
=======================================
  Hits         1910     1910           
  Misses        225      225

[rossabaker]

Added a commit to remove the unused imports, now enforced in 2.13. I'll recuse myself from the review.

[aeons]

I see Ross' name and assume this is http4s, where my approval actually does something. :)