[BUG-python/deployment] Impropriate error message when there is empty string in record field values.

[Ignoramus0817]

Describe the bug

When there is empty string (i.e. "") in record field values, uploading records will raise an error httpx.RemoteProtocolError: peer closed connection without sending complete message body (incomplete chunked read), which I think is not helpful for locating the problem. Besides, it would be best if the system automatically processes the empty value for users (e.g. fill a "none").

Stacktrace and Code to create the bug

import argilla as rg

client = rg.Argilla(
    api_url="<api_url>", api_key="<api_key>")

settings = rg.Settings(
    guidelines="These are some guidelines.",
    fields=[
        rg.TextField(
            name="text", title="text", use_markdown=True
        ),
    ],
    questions=[
        rg.LabelQuestion(
            name="label",
            labels=["label_1", "label_2", "label_3"]
        ),
    ],
    metadata=[
        rg.TermsMetadataProperty(
            name="id",
        )
    ]
)

dataset = rg.Dataset(
    name="sample_dataset_0",
    workspace="sft",
    settings=settings,
)

dataset.create()

dataset = client.datasets(name="sample_dataset_0")
records = [
    rg.Record(
        fields={
            "text": "",
        },
        metadata={"id": "0"},
    ),
    rg.Record(
        fields={
            "text": "What is the boiling point of water?",
        },
        metadata={"id": "1"},
    ),
]

dataset.records.log(records)

Expected behavior

Display error message suggesting the empty value or process the empty value automatically.

Environment:

• OS [e.g. iOS]: Ubuntu 22.04.2 LTS
• Argilla Version [e.g. 1.0.0]: 2.3.0
• ElasticSearch Version [e.g. 7.10.2]: 8.12.2
• Docker Image (optional) [e.g. argilla:v1.0.0]: argilla/argilla-server:latest