1.13.0

• Update to Kotlin 2.1.20. This plugin version requires Kotlin 2.1.20 or later.
• Build against Gradle 8.13.

What's Changed

• Update plugin buildConfig to v5.5.2 by @renovate in #298
• Update plugin mavenPublish to v0.31.0 by @renovate in #297
• Update ksp monorepo to v2.1.10-1.0.31 - autoclosed by @renovate in #296
• Update dependency gradle to v8.13 by @renovate in #295
• Update plugin buildConfig to v5.6.0 by @renovate in #299
• Kotlin 2.1.20 by @ZacSweers in #290
• Update dependency io.ktor:ktor-utils to v3.1.1 by @renovate in #294

Full Changelog: 1.12.1...1.13.0