cannot publish package to jsr but it uses a shared file

workspace/
  packages/
    foo/
      deno.json
      mod.ts
  deno.json
  utils.ts

{
  "name": "foo",
  "version": "0.0.1",
  "exports": "./mod.ts",
  "license": "MIT",
  "publish": {
    "include": [
      "mod.ts",
      "deno.json"
    ]
  }
}