Umbrella app's test directories were generated with type src instead of test

[brunomalvestuto]

If you run mix ex_projections in an umbrella app with two apps for instance, it will generate an output similar to the following:

{
  "apps/first/lib/*.ex": {
    "alternate": "apps/first/test/{}_test.exs",
    "type": "src"
  },
  "apps/first/test/*_test.exs": {
    "alternate": "apps/first/lib/{}.ex",
    "type": "src"
  },
  "apps/second/lib/*.ex": {
    "alternate": "apps/second/test/{}_test.exs",
    "type": "src"
  },
  "apps/second/test/*_test.exs": {
    "alternate": "apps/second/lib/{}.ex",
    "type": "src"
  }
}

The expected output would be:

{
  "apps/first/lib/*.ex": {
    "alternate": "apps/first/test/{}_test.exs",
    "type": "src"
  },
  "apps/first/test/*_test.exs": {
    "alternate": "apps/first/lib/{}.ex",
    "type": "test"
  },
  "apps/second/lib/*.ex": {
    "alternate": "apps/second/test/{}_test.exs",
    "type": "src"
  },
  "apps/second/test/*_test.exs": {
    "alternate": "apps/second/lib/{}.ex",
    "type": "test"
  }
}