Better exception handling for 'create mind'

[StpMax]

e.response.json() fail if response does not contain json. 'Parsing error' confusing in this case, so added better error message.

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
mindsdb_sdk
agents.py	197	49	75%	23, 82, 90, 98, 106, 114, 124, 127, 131, 133, 135, 137, 139, 200–212, 224, 233–237, 244–245, 282, 294–295, 336, 353–355, 371, 376–378, 409–410, 430–432, 436–440
databases.py	45	2	96%	109, 137
handlers.py	39	1	97%	77
jobs.py	97	7	93%	41, 53, 81, 85, 147–150
knowledge_bases.py	126	15	88%	58–61, 151, 155–162, 167–171, 250–253, 322, 339
ml_engines.py	42	3	93%	94, 126, 128
models.py	211	19	91%	109, 140–141, 222, 231, 233, 303, 339, 348, 372, 403, 497, 505, 524, 540, 548, 573, 577, 590
projects.py	64	1	98%	168
query.py	13	1	92%	14
skills.py	53	3	94%	43, 45, 49
tables.py	130	15	88%	140–142, 145, 165, 192, 203–204, 209, 224, 227, 321, 342–347, 356, 376
views.py	37	2	95%	105, 138
mindsdb_sdk/connectors
rest_api.py	208	33	84%	16–26, 32–33, 48, 51–52, 72–74, 95, 98, 105–108, 141–149, 196, 210–211
mindsdb_sdk/utils
mind.py	25	25	0%	1–69
openai.py	85	30	65%	37–40, 83–85, 107, 148–158, 215–216, 234–240, 258–276
table_schema.py	21	21	0%	1–54
TOTAL	1481	227	85%

Tests	Skipped	Failures	Errors	Time
23	0 💤	0 ❌	0 🔥	9.115s ⏱️

[ea-rus]

LGTM
Maybe better would be:

    try:
        response = requests.post(url, json=payload, headers=headers)
        if response.status_code  != 200:
        try:
            error_message = response.json()
        except JsonDecodeError:
            error_message = response.text
        logger.error(f"Failed to create mind: {error_message}")
        raise e
    except Exception as e:
        logger.error(f"Failed to create mind: {e}")
        raise e