build(deps): bump dev.zacsweers.kctfork:core from 0.7.1 to 0.12.1

Bumps [dev.zacsweers.kctfork:core](https://github.com/zacsweers/kotlin-compile-testing) from 0.7.1 to 0.12.1.
- [Release notes](https://github.com/zacsweers/kotlin-compile-testing/releases)
- [Changelog](https://github.com/ZacSweers/kotlin-compile-testing/blob/main/CHANGELOG.md)
- [Commits](ZacSweers/kotlin-compile-testing@0.7.1...0.12.1)

---
updated-dependencies:
- dependency-name: dev.zacsweers.kctfork:core
  dependency-version: 0.12.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -40,7 +40,7 @@ kotlinCompilerEmbeddable = { group = "org.jetbrains.kotlin", name = "kotlin-comp
 autoService = { group = "com.google.auto.service", name = "auto-service", version = "1.1.1" }
 autoServiceAnnotatons = { group = "com.google.auto.service", name = "auto-service-annotations", version = "1.1.1" }
 kotlinJunit = { group = "org.jetbrains.kotlin", name = "kotlin-test-junit", version.ref = "kotlin" }
-kotlinCompileTesting = { group = "dev.zacsweers.kctfork", name = "core", version = "0.7.1" }
+kotlinCompileTesting = { group = "dev.zacsweers.kctfork", name = "core", version = "0.12.1" }
 truth = { module = "com.google.truth:truth", version = "1.4.5" }
 composeDesktop = { group = "org.jetbrains.compose.desktop", name = "desktop", version = "1.6.10" }