1.15.0

• Update to Kotlin 2.2.20. This release requires 2.2.20 or later.
• Compile against Gradle 9.0.

What's Changed

• Update dependency gradle to v8.14.3 by @renovate[bot] in #334
• Update plugin binaryCompatibilityValidator to v0.18.1 by @renovate[bot] in #336
• Update plugin spotless to v7.1.0 by @renovate[bot] in #335
• Update dependency io.ktor:ktor-utils to v3.2.1 by @renovate[bot] in #333
• Update plugin mavenPublish to v0.34.0 by @renovate[bot] in #339
• Update dependency io.ktor:ktor-utils to v3.2.2 by @renovate[bot] in #338
• Update plugin spotless to v7.2.0 by @renovate[bot] in #340
• Update plugin spotless to v7.2.1 by @renovate[bot] in #342
• Update dependency io.ktor:ktor-utils to v3.2.3 by @renovate[bot] in #343
• Update dependency gradle to v9 by @renovate[bot] in #344
• Update actions/checkout action to v5 by @renovate[bot] in #346
• Update actions/checkout digest to 08eba0b - autoclosed by @renovate[bot] in #345
• Kotlin 2.2.10 by @ZacSweers in #341
• Update actions/setup-java action to v5 by @renovate[bot] in #349
• Prep for Kotlin 2.2.20 by @ZacSweers in #337
• Update dependency com.google.truth:truth to v1.4.5 by @renovate[bot] in #352
• Update plugin buildConfig to v5.6.8 by @renovate[bot] in #350

Full Changelog: 1.14.1...1.15.0