fix: json import (#958)

packages/env/src/tokenizers/node.ts

 // Note: This is using th WASM implementation of tiktoken which is 60x faster
-import cl100k_base from "tiktoken/encoders/cl100k_base.json";
+import cl100k_base from "tiktoken/encoders/cl100k_base.json" with { type: "json" };
 import { Tiktoken } from "tiktoken/lite";
 import type { Tokenizer } from "./types.js";
 import { Tokenizers } from "./types.js";

packages/env/tsconfig.json

@@ -5,7 +5,7 @@
     "outDir": "./dist/type",
     "tsBuildInfoFile": "./dist/.tsbuildinfo",
     "emitDeclarationOnly": true,
-    "module": "node16",
+    "module": "nodenext",
     "moduleResolution": "node16",
     "types": ["node"],
     "resolveJsonModule": true