Enable toolchain auto downloading (#238)

Use foojay conversion plugin for toolchain provisioning

Author: fzhinkin

build-logic/build.gradle.kts

@@ -15,3 +15,7 @@ dependencies {
     implementation(libs.kotlin.gradle.plugin)
     implementation(libs.animalsniffer.gradle.plugin)
 }
+
+kotlin {
+    jvmToolchain(JavaLanguageVersion.of(libs.versions.java.get()).asInt())
+}

build-logic/settings.gradle.kts

@@ -3,6 +3,10 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE.txt file.
  */
 
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version ("0.7.0")
+}
+
 dependencyResolutionManagement {
     versionCatalogs {
         create("libs") {

settings.gradle.kts

@@ -13,6 +13,10 @@ pluginManagement {
     }
 }
 
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version ("0.7.0")
+}
+
 rootProject.name = "kotlinx-io"
 
 include(":kotlinx-io-core")