fix sshKeys notfound

selfprivacy_api/graphql/common_types/user.py

@@ -52,6 +52,8 @@ def get_user_by_username(username: str) -> typing.Optional[User]:
 
         for user in data["users"]:
             if user["username"] == username:
+                if "sshKeys" not in user:
+                    user["sshKeys"] = []
 
                 return User(
                     user_type=UserType.NORMAL,

selfprivacy_api/graphql/mutations/users_utils.py

@@ -44,10 +44,7 @@ def create_user_util(username, password):
         ensure_ssh_and_users_fields_exist(data)
 
         data["users"].append(
-            {
-                "username": username,
-                "hashedPassword": hashed_password,
-            }
+            {"username": username, "hashedPassword": hashed_password, "sshKeys": []}
         )
 
     return True, "User was successfully created!", 201