v3.7.12

Bug fixes

• Scalameta: upgrade to v4.8.7 (#3604) @kitbellew
• Fixed typo in configuration.md (#3595) @ThinkDumbIndustries

Miscellaneous

• Router: handle self-type whether it ends in => (#3602) @kitbellew
• FormatTokens: use Either.merge (#3596) @kitbellew

Dependency updates

• Update sbt-scalajs-crossproject to 1.3.2 (#3599) @scalameta-bot
• Update scalafmt-core to 3.7.11 (#3601) @scalameta-bot
• Update sbt to 1.9.3 (#3600) @scalameta-bot
• Update sbt-mima-plugin to 1.1.3 (#3598) @scalameta-bot