Set languageVersion to 17 for buildSrc

Author: malczuuu

buildSrc/build.gradle.kts

@@ -2,6 +2,10 @@ plugins {
     `kotlin-dsl`
 }
 
+java {
+    toolchain.languageVersion = JavaLanguageVersion.of(17)
+}
+
 repositories {
     mavenCentral()
 }