Create project team membership

curl --request POST \
  --url https://api.buildr.com/api/2023-01/project_team_memberships \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --data '{
  "project_team_membership": {
    "user_id": "953",
    "roles": [
      "project_admin"
    ]
  }
}'

{
  "project_team_membership": {
    "id": "750",
    "created_at": "2023-02-14T18:13:00Z",
    "updated_at": "2023-04-03T20:16:30Z",
    "user": {
      "id": "953",
      "created_at": "2023-02-14T18:13:00Z",
      "updated_at": "2023-04-03T20:16:30Z",
      "first_name": "Russell",
      "last_name": "Westbrook",
      "name": "Russell Westbrook",
      "email": "russell.westbrook@example.com"
    },
    "project": {
      "id": "129",
      "created_at": "2023-02-14T18:13:00Z",
      "updated_at": "2023-04-03T20:16:30Z",
      "name": "Culver High Rise"
    },
    "roles": [
      {
        "id": "830",
        "created_at": "2023-02-14T18:13:00Z",
        "updated_at": "2023-04-03T20:16:30Z",
        "role": "project_manager",
        "name": "Project Manager"
      }
    ]
  }
}