Revert "[Wasm] Use Node.js with "canary" v8 (11.7.310.0) in tests"

This reverts commit 0bdee00ca2.

#KT-60835

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-wasm-test/build.gradle.kts

@@ -8,9 +8,7 @@ repositories {
 }
 
 with(org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootPlugin.apply(rootProject)) {
-    // canary nodejs that supports recent Wasm GC changes
-    nodeVersion = "21.0.0-v8-canary202307189734ce28be"
-    nodeDownloadBaseUrl = "https://nodejs.org/download/v8-canary"
+    nodeVersion = "20.2.0"
 }
 
 with(org.jetbrains.kotlin.gradle.targets.js.d8.D8RootPlugin.apply(rootProject)) {