Add limit parameter for using web.crawler from SDK

[ea-rus]

Using web handler from SDK, added limit parameter to:

• agent.add_webpages
• knowledge_base.insert_webpages

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
mindsdb_sdk
agents.py	211	56	73%	33, 101, 104, 107, 110, 118, 126, 146, 167, 178, 181, 185, 187, 189, 191, 193, 195, 257, 270, 281, 292, 296–311, 323, 332–336, 343–344, 392, 400–401, 454, 503–504, 507, 514, 535–537, 541–545
databases.py	45	2	96%	109, 137
handlers.py	39	1	97%	77
jobs.py	97	7	93%	40, 52, 80, 84, 146–149
knowledge_bases.py	120	12	90%	53–56, 122, 148, 177, 181, 185, 207–211, 221
ml_engines.py	42	3	93%	94, 126, 128
models.py	210	19	91%	109, 140–141, 222, 231, 233, 303, 339, 348, 372, 397, 491, 499, 518, 534, 542, 567, 571, 584
projects.py	63	1	98%	160
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	255	52	80%	19–29, 35–36, 51, 55, 58–59, 79–81, 102, 105, 112–115, 148–156, 177–178, 213–216, 230–231, 285–290, 294–306
mindsdb_sdk/utils
agents.py	50	4	92%	72, 79–81
mind.py	47	47	0%	1–128
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	1605	276	83%

Tests	Skipped	Failures	Errors	Time
28	0 💤	0 ❌	0 🔥	11.377s ⏱️