[Redis 8.10] Add integration test for search-on-timeout config

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Note

Low Risk
Test-only changes in integration tests; no production library behavior is modified in this diff.

Overview
Adds Redis 8.10+ integration coverage for the global search-on-timeout config (CAE-3003) in RediSearchIntegrationTests.

New helpers bulk-load 10k documents, poll FT.INFO num_docs via raw dispatch (with a small RESP2/RESP3-aware decoder), and run deliberately heavy queries with a 1ms timeout so the server’s on-timeout policy always applies.

Six tests toggle CONFIG SET search-on-timeout between fail and return, restoring return in finally blocks:

• fail: ftSearch, ftAggregate, and ftHybrid must throw RedisCommandExecutionException whose message mentions timeout.
• return: same commands must succeed and expose timeout warnings on SearchReply, nested aggregate SearchReply, or HybridReply (RESP3 assumed where warnings are RESP3-only).

Hybrid scenarios use a separate vector index and expensive post-processing (large KNN/COMBINE window plus repeated format APPLY/sort) to force timeouts reliably.

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