Preparing for next release 0.1.9 with k6 0.57.0

Author: phymbert

README.md

@@ -5,7 +5,7 @@ See the [K6 SSE Extension design](docs/design/021-sse-api.md).
 
 ## k6 version
 
-This extension is tested with `k6` version `v0.56.0` last release is [v0.1.8](https://github.com/phymbert/xk6-sse/releases/tag/v0.1.8).
+This extension is tested with `k6` version `v0.57.0` last release is [v0.1.9](https://github.com/phymbert/xk6-sse/releases/tag/v0.1.9).
 
 ## Build