Update scalafmt-core to 3.1.2

[scala-steward]

Updates org.scalameta:scalafmt-core from 3.1.1 to 3.1.2.
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!

Files still referring to the old version number

The following files still refer to the old version number (3.1.1).
You might want to review and update them manually.

frontend/yarn.lock

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, early-semver-patch, semver-spec-patch, old-version-remains

[codecov]

Codecov Report

Merging #1326 (11c9bd5) into develop (c0447ff) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1326   +/-   ##
========================================
  Coverage    13.79%   13.79%           
========================================
  Files            8        8           
  Lines           29       29           
  Branches         1        1           
========================================
  Hits             4        4           
  Misses          25       25           

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