Add @typespec/streams as direct dependency

- Intention is to pin all TSP packages, not just leaf nodes
- Ensures branch "tsp-next" resolves the correct packages

package.json

@@ -16,6 +16,7 @@
     "@typespec/openapi": "0.62.0",
     "@typespec/openapi3": "0.62.0",
     "@typespec/rest": "0.62.0",
+    "@typespec/streams": "0.62.0",
     "@typespec/versioning": "0.62.0",
     "azure-rest-api-specs-eng-tools": "file:eng/tools",
     "oav": "^3.5.1",