misc: revert toList/JVM compatibility changes

Author: 0marperez

codegen/smithy-aws-kotlin-codegen/build.gradle.kts

@@ -44,13 +44,13 @@ dependencies {
 
 tasks.withType<KotlinCompile> {
     compilerOptions {
-        jvmTarget.set(JvmTarget.JVM_1_8)
+        jvmTarget.set(JvmTarget.JVM_17)
     }
 }
 
 tasks.withType<JavaCompile> {
-    sourceCompatibility = JavaVersion.VERSION_1_8.toString()
-    targetCompatibility = JavaVersion.VERSION_1_8.toString()
+    sourceCompatibility = JavaVersion.VERSION_17.toString()
+    targetCompatibility = JavaVersion.VERSION_17.toString()
 }
 
 // Reusable license copySpec

codegen/smithy-kotlin-codegen/src/main/kotlin/software/amazon/smithy/kotlin/codegen/model/ShapeExt.kt

@@ -21,7 +21,6 @@ import software.amazon.smithy.rulesengine.language.EndpointRuleSet
 import software.amazon.smithy.rulesengine.traits.EndpointRuleSetTrait
 import software.amazon.smithy.rulesengine.traits.EndpointTestCase
 import software.amazon.smithy.rulesengine.traits.EndpointTestsTrait
-import java.util.stream.Collectors
 
 /**
  * Get all shapes of a particular type from the model.
@@ -33,7 +32,7 @@ import java.util.stream.Collectors
  * shape's closure for example)
  */
 @Suppress("EXTENSION_SHADOWED_BY_MEMBER")
-inline fun <reified T : Shape> Model.shapes(): List<T> = shapes(T::class.java).collect(Collectors.toList())
+inline fun <reified T : Shape> Model.shapes(): List<T> = shapes(T::class.java).toList()
 
 /**
  * Extension function to return a shape of expected type.