Python: improved text_search folder testing

[eavanvalkenburg]

Motivation and Context

added unit tests to up the test coverage across the data folder
Also redoes exceptions for everything vector.

This does introduce some breaking changes on the exceptions returned by the different methods for vector stores, they are still marked experimental and this will go a long way in moving towards release.

Closes #9485

Description

Contribution Checklist

• The code builds clean without any errors or warnings
• The PR follows the SK Contribution Guidelines and the pre-submission formatting script raises no violations
• All unit tests pass, and I have added new tests where possible
• I didn't break anyone 😄

[markwallace-microsoft]

Python Test Coverage Report •

File	Stmts	Miss	Cover	Missing
semantic_kernel/connectors/memory/azure_ai_search
azure_ai_search_collection.py	137	36	74%	174, 176, 249–290, 300–310, 314, 318, 323–326
azure_ai_search_store.py	42	2	95%	130–131
semantic_kernel/connectors/memory/azure_cosmos_db
azure_cosmos_db_no_sql_base.py	50	9	82%	93, 96–97, 105, 115–119
azure_cosmos_db_no_sql_collection.py	156	52	67%	98–99, 140–147, 158–172, 178–184, 190–194, 217–228, 232, 236, 260, 288–289, 293–298
azure_cosmos_db_no_sql_store.py	33	6	82%	91–96
utils.py	55	7	87%	43, 66, 91, 186, 200–203
semantic_kernel/connectors/memory/redis
redis_collection.py	241	47	80%	174, 179–180, 191–201, 209–229, 232–239, 254–259, 263, 339, 376–383, 461, 483–490
redis_store.py	42	2	95%	108–109
utils.py	71	32	55%	153–154, 172, 174, 181–196, 203–233
semantic_kernel/connectors/memory/weaviate
utils.py	80	22	72%	92–97, 194, 243, 262, 269–272, 281–292
weaviate_collection.py	177	59	67%	173–176, 180–186, 190–191, 202–219, 226–233, 242–262, 271–287, 291, 294–298, 342, 346–353, 368, 387, 403, 412–413, 419, 424
weaviate_store.py	59	17	71%	110–118, 122–127, 132–137, 142–143
semantic_kernel/data/vector_search
vector_search.py	33	2	94%	124–125
vector_text_search.py	20	3	85%	56–59
vectorizable_text_search.py	19	3	84%	61–64
vectorized_search.py	19	3	84%	56–59
TOTAL	16727	1767	89%

Python Unit Test Overview

Tests	Skipped	Failures	Errors	Time
2993	4 💤	0 ❌	0 🔥	1m 25s ⏱️