Update generators.yml

Author: fern-support

fern/apis/api/generators.yml

@@ -30,7 +30,7 @@ groups:
             unions: v1
         output:
           location: npm
-          package-name: "@vapi/server-sdk"
+          package-name: "@vapi-ai/server-sdk"
           token: ${NPM_TOKEN}
         github:
           repository: VapiAI/server-sdk-typescript