Update scalafmt-core to 2.6.3

[scala-steward]

Updates org.scalameta:scalafmt-core from 2.6.2 to 2.6.3.
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.

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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 = "scalafmt-core" } ]

labels: library-update, semver-patch

[codecov]

Codecov Report

Merging #362 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #362   +/-   ##
=======================================
  Coverage   68.56%   68.56%           
=======================================
  Files           8        8           
  Lines         299      299           
  Branches        3        3           
=======================================
  Hits          205      205           
  Misses         94       94           

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