Update scalafmt-core from 3.6.1 to 3.7.0

[scala-steward]

Updates org.scalameta:scalafmt-core from 3.6.1 to 3.7.0. GitHub Release Notes - Version Diff

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Adjust 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" } ] ``` Or, add this to slow down future updates of this dependency: ``` dependencyOverrides = [{ pullRequests = { frequency = "30 days" }, dependency = { groupId = "org.scalameta", artifactId = "scalafmt-core" } }] ```

labels: library-update, early-semver-minor, semver-spec-minor, commit-count:1