Issue #3563773: Add support for AI Search 2.0

Enrique Worwarequested to merge
issue/ai_vdb_provider_postgres-3563773:3563773-ai-search-2.0-support into 1.0.x
  • Updated dependencies to AI 2.0.x-dev and AI Search 1.0.x-dev
  • Migrated from AiVdbProviderClientBase to SearchApiAiVdbProviderBase
  • Updated constructor with new service dependencies
  • Kept Key module integration for password management
  • Added support for search_api_ai_excluded_entity_ids filter option
  • Changed getConfig() to protected method

Closes #3563773

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