PCQA-1107 explicitly declare JVM version

otherwise the system version will be used, e.g., Java 8 on CI,
and it will fail as `com.jetbrains.python.envs` is compiled with
Java 17


(cherry picked from commit cc38a0bf6f3376d7c614a68646ccdab7088e2f8d)

IJ-MR-169407

GitOrigin-RevId: 0594621cdf3bb406423b9f7183d3b6e1daa4336d

python/setup-test-environment/build.gradle.kts

@@ -6,9 +6,16 @@ import kotlin.io.path.createLinkPointingTo
 import kotlin.io.path.exists
 
 plugins {
+  id("java")
   id("com.jetbrains.python.envs") version "0.0.33"
 }
 
+java {
+  toolchain {
+    languageVersion.set(JavaLanguageVersion.of(17))
+  }
+}
+
 enum class PythonType { PYTHON, CONDA }
 // If you decided to change a default path, make sure to update in `community/python/testSrc/com/jetbrains/env/PyEnvTestSettings.kt`
 val pythonsDirectory = File(System.getenv().getOrDefault("PYCHARM_PYTHONS", File(buildDir, "pythons").path))
@@ -75,7 +82,7 @@ tasks.register<Exec>("kill_python_processes") {
   commandLine("powershell", """"Get-Process | where {${'$'}_.Name -ieq \"python\"} | Stop-Process"""")
 }
 
-tasks.register<Delete>("clean") {
+tasks.named<Delete>("clean") {
   dependsOn("kill_python_processes")
 
   delete(project.layout.buildDirectory)
@@ -83,7 +90,7 @@ tasks.register<Delete>("clean") {
   delete(venvsDirectory)
 }
 
-tasks.register("build") {
+tasks.named("build") {
   dependsOn(tasks.matching { it.name.startsWith("setup_") || it.name == "updateConda" }, "clean", "copy_buildserver_win_fix")
 }