docs: update changeset doc

Author: floydspace

.changeset/tasty-rice-trade.md

@@ -8,10 +8,13 @@ Just yield it within api handler:
 
 ```ts
 //...
+import { type APIGatewayProxyEvent, LambdaHandler } from "@effect-aws/lambda"
+//...
 const HelloLive = HttpApiBuilder.group(MyApi, "hello", (handlers) =>
   handlers.handle("hello", () =>
     Effect.gen(function* () {
-      const { context, event } = yield* LambdaHandler.LambdaHandlerArgs
+      const event = yield* LambdaHandler.event<APIGatewayProxyEvent>()
+      const context = yield* LambdaHandler.context()
 
       yield* Effect.logInfo("Lambda event", { event, context })