Update scalameta to 4.3.15

[scala-steward]

Updates org.scalameta:scalameta from 4.3.14 to 4.3.15.
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.scalameta", artifactId = "scalameta" } ]

labels: library-update, semver-patch

[codecov]

Codecov Report

Merging #291 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #291   +/-   ##
=======================================
  Coverage   83.93%   83.93%           
=======================================
  Files          29       29           
  Lines        1899     1899           
  Branches       25       25           
=======================================
  Hits         1594     1594           
  Misses        305      305           

---

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 15ae3c0...dcb22be. Read the comment docs.