Added index type tests for text

[vic-tsang]

This PR contains:

• indexes type tests for text
• createIndexes tests didn't use bson_type_validator framework
  • in this PR we have validated the following: default_language, language_override, weights, textIndexVersion

Ref:

• Issue Add compatibility test for core: indexes (14 total) #27

[fanyangv]

This PR covers BSON type validation and 3 error cases, but is missing success/behavior tests for text index creation. Consider adding (here or in follow-up):

1. Compound text index creation succeeds ({"a": 1, "content": "text", "b": -1})
2. Wildcard text index ({"$**": "text"}) creation succeeds
3. Sparse behavior — documents without indexed field are excluded from $text results
4. Collation restriction — text index on collection with non-simple collation requires {collation: {locale: "simple"}}

[documentdb-triage-tool]

🤖 Auto-triaged by documentdb-triage-tool.

Applied: compatibility test, enhancement
Project fields suggested: Component test-coverage · Priority P2 · Effort M · Status Needs Review
Confidence: 0.85 (mixed)

Reasoning

component from path globs (test-coverage, test-framework); effort from diff stats (180+1 LOC, 3 files); LLM: Adds new index type tests for text and migrates existing createIndexes tests to use the bson_type_validator framework, expanding test coverage within the compatibility tests component.

If a label is wrong, remove it manually and ping @patty-chow so the rules can be tuned. The bot will not re-label items that already have component labels.

[vic-tsang]

• Compound text index creation succeeds ({"a": 1, "content": "text", "b": -1})
• Wildcard text index ({"$**": "text"}) creation succeeds
• Sparse behavior — documents without indexed field are excluded from $text results
• Collation restriction — text index on collection with non-simple collation requires {collation: {locale: "simple"}}

2. already lives: text_wildcard in test_createIndexes_index_types.py.
   added the rests