Replace legacy gradle plugin code

gradle.properties

@@ -1,3 +1,2 @@
 smithyVersion=1.62.0
-smithyGradleVersion=1.3.0
-smithyPluginVersion=0.7.0
+smithyGradleVersion=1.3.0

smithy-typescript-protocol-test-codegen/build.gradle.kts

@@ -1,4 +1,4 @@
-import software.amazon.smithy.gradle.tasks.SmithyBuild
+import software.amazon.smithy.gradle.tasks.SmithyBuildTask
 
 val smithyVersion: String by project
 
@@ -15,23 +15,26 @@ buildscript {
 }
 
 plugins {
-    val smithyPluginVersion: String by project
-    id("software.amazon.smithy").version(smithyPluginVersion)
+    `java-library`
+
+    val smithyGradleVersion: String by project
+    id("software.amazon.smithy.gradle.smithy-base").version(smithyGradleVersion)
 }
 
 dependencies {
     implementation("software.amazon.smithy:smithy-protocol-tests:$smithyVersion")
     implementation(project(":smithy-typescript-codegen"))
 }
 
-// This project doesn't produce a JAR.
-tasks["jar"].enabled = false
-
-tasks["smithyBuildJar"].enabled = false
-
-tasks.register<SmithyBuild>("buildSdk") {
-    addRuntimeClasspath = true
+val buildSdk = tasks.register<SmithyBuildTask>("buildSdk") {
+    models.set(files("model/"))
+    smithyBuildConfigs.set(files("smithy-build.json"))
 }
 
 // Run the `buildSdk` automatically.
-tasks["build"].finalizedBy(tasks["buildSdk"])
+tasks["build"].finalizedBy(buildSdk)
+
+tasks.register<Sync>("copyOutput") {
+    into(layout.buildDirectory.dir("model"))
+    from(buildSdk.map { it.getPluginProjectionDirectory("source", "model") })
+}

smithy-typescript-protocol-test-codegen/model/my-local-model/main.smithy

@@ -7,8 +7,8 @@ use smithy.protocols#rpcv2Cbor
 @rpcv2Cbor
 @documentation("xyz interfaces")
 service XYZService {
-    version: "1.0",
-    operations : [
+    version: "1.0"
+    operations: [
         GetNumbers
     ]
 }
@@ -18,9 +18,9 @@ operation GetNumbers {
     input: GetNumbersRequest
     output: GetNumbersResponse
     errors: [
-        CodedThrottlingError,
-        MysteryThrottlingError,
-        RetryableError,
+        CodedThrottlingError
+        MysteryThrottlingError
+        RetryableError
         HaltError
     ]
 }
@@ -47,8 +47,8 @@ structure CodedThrottlingError {}
 structure MysteryThrottlingError {}
 
 @error("client")
-@retryable()
+@retryable
 structure RetryableError {}
 
 @error("client")
-structure HaltError {}
+structure HaltError {}