Update dependency google-genai to v2.9.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
google-genai	==2.8.0 → ==2.9.0
google-genai	~=2.8.0 → ~=2.9.0

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Release Notes

googleapis/python-genai (google-genai)

v2.9.0

Compare Source

Major updates

• The interactions implementation has been completely replaced. The public api surface is unchanged. (d830f16)

Features

• Add audioOffset to VoiceActivity (fb785e4)
• Add gemini-3-flash-preview (gemini-3.1, gemini-3.5, gemini-4 are already mapped) to the local tokenizer map. (749f8a1), closes #​1972
• Add interimInputTranscription to LiveServerContent (fb785e4)
• Add LanguageAuto, LanguageHints, and adaptationPhrases to AudioTranscriptionConfig (fb785e4)
• Broaden publisher model path check to support all publishers (5d282e6)
• Add ServiceTier to UsageMetadata (45b4963)
• Expose Computer Use API fields (420b5a7)
• Gemma 4 local tokenizer support (ca97c58)
• interaction-api: Add presence_penalty, frequency_penalty, and cached_content to models.proto (05f16fe)
• interaction-api: Rename usage to total_usage in StreamMetadata. (7c331c6)

Bug Fixes

• Add fallback for aiohttp.readline without max_line_length for backward compatibility because we still want to keep aiohttp as optional dependency (e99ab99), closes #​2487
• Fix header (f8f9749)
• Keep live music API keys out of websocket urls (#​2564) (c754ebf)
• Make transformers an optional dependency for local tokenizers, also add other dependencies to local-tokenizer-extras. (528926b)
• Use .model_copy() instead of deprecated .copy() (216369f)

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