Bump version to 0.209.0 (#329)

## Why

Bump version to 0.209.0 for release

## What changed

- Bump version to 0.209.0 for release

## Versioning

- [ ] Breaking protocol change
- [ ] Breaking ts/js API change

<!-- Kind reminder to add tests and updated documentation if needed -->

Author: daweifeng-replit

package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "@replit/river",
   "description": "It's like tRPC but... with JSON Schema Support, duplex streaming and support for service multiplexing. Transport agnostic!",
-  "version": "0.208.4",
+  "version": "0.209.0",
   "type": "module",
   "exports": {
     ".": {