fix: Save role includes access with uuid null.

[EdwinBetanc0urt]

If there is a form that does not have a UUID, but a role has access to that role, it is not exported to OpenSearch.

"form_access": [
    null,
    "719e204d-4885-4497-a3c2-1cead8ca7525",
    "0253e1db-a4b6-4d9f-9a53-db05b0fa6184",
    null,
    "76a242ef-e7bb-4cc1-9a88-42a0f5e23444",
    "916ee6d6-b56b-4f82-aaa5-ba8c95df9ca7",
    "463e90f4-9af3-4737-bdc2-519ec0a5fbae"
]

2024-10-01T01:23:22.152Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 7958
2024-10-01T01:23:22.153Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8192
2024-10-01T01:23:22.153Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8119
2024-10-01T01:23:22.620Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8114
2024-10-01T01:23:22.620Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8119
2024-10-01T01:23:22.621Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8119
2024-10-01T01:23:22.621Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8114
2024-10-01T01:23:22.621Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8119
2024-10-01T01:23:22.621Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8114
2024-10-01T01:23:22.621Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8125
2024-10-01T01:23:22.622Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8007
2024-10-01T01:23:22.771Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8119
2024-10-01T01:23:22.771Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8114
2024-10-01T01:23:22.772Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8119
2024-10-01T01:23:22.772Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8158
2024-10-01T01:23:22.772Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8158
2024-10-01T01:23:22.772Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8114
2024-10-01T01:23:22.773Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8119
2024-10-01T01:23:23.073Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8002
2024-10-01T01:23:23.073Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8114
2024-10-01T01:23:23.074Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8002
2024-10-01T01:23:23.074Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8119
2024-10-01T01:23:23.074Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8121
2024-10-01T01:23:23.074Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8192
2024-10-01T01:23:23.227Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 8192
2024-10-01T01:23:23.227Z WARN  [server] Topic: "role", invalid type: null, expected a string at line 1 column 6905

Now it is exported anyway but it is not considered as part of the role access.

Additional context

fixes solop-develop/frontend-core#2716