chore: bump vitest to 3.x and use latest version

Author: trivikr

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/TypeScriptDependency.java

@@ -130,7 +130,7 @@ public enum TypeScriptDependency implements Dependency {
     @Deprecated EXPERIMENTAL_IDENTITY_AND_AUTH("dependencies", "@smithy/experimental-identity-and-auth", false),
 
     // Conditionally added when specs have been generated.
-    VITEST("devDependencies", "vitest", "2.1.8", false),
+    VITEST("devDependencies", "vitest", "3.2.4", true),
 
     // Conditionally added when `generateTypeDoc` is true.
     TYPEDOC("devDependencies", "typedoc", "0.23.23", false),