chore(deps): update dependency google-genai to v2

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
google-genai	>=1,<2 → >=2,<3

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Release Notes

googleapis/python-genai (google-genai)

v2.3.0

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Features

• Add content union to UserInputStep (a5059a8)
• Interaction.{output_text,output_image,output_audio,output_video} (975d16a)
• Migrate Agent Engines, Evaluation, Prompt Management, and Skill features to agentplatform (abb1099)

Documentation

• Refresh generated docs for 2.2 (2ce0298)

v2.2.0

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Features

• Added missing FunctionCallResultDelta type and arguments field to the ArgumentDelta type (b0131f8)

v2.1.0

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Features

• Add gemini-3.1-flash-lite to model options (2d5e0fa)
• Add parameters to video response_format. (4e9d68d)
• Introduce Server Side tools deltas (97d6fe5)
• Support Blocking FunctionCall in Live API in AgentPlatform (Vertex) (955bca6)
• Add support for vertex-lyria models lyria-3-pro-preview & lyria-3-clip-preview (1bc0536)

Bug Fixes

• Steps is not optional (9ea9633)

v2.0.1

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Bug Fixes

• Update response_format field names to snake_case. (97142b1)

v2.0.0

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⚠ BREAKING CHANGES - Interactions Only

Note: The breaking changes are only in interactions. GenerateContent usage in unaffected.
Refer to https://ai.google.dev/gemini-api/docs/interactions-breaking-changes-may-2026 for details

• Add steps for interactions (41d8e5b)
• Rename SSE events to interaction.created and interaction.completed (0549c1c)
• Deprecate legacy response_format and publish new polymorphic field. (7fdc9a1)

Documentation

• Update docs (d3020fd)

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⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

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The artifact failure details are included below:

File name: pyproject.toml

Artifact update for google-genai resolved to version 2.4.0, which is a pending version that has not yet passed the Minimum Release Age threshold.
Renovate was attempting to update to 2.3.0
This is (likely) not a bug in Renovate, but due to the way your project pins dependencies, _and_ how Renovate calls your package manager to update them.
Until Renovate supports specifying an exact update to your package manager (https://github.com/renovatebot/renovate/issues/41624), it is recommended to directly pin your dependencies (with `rangeStrategy=pin` for apps, or `rangeStrategy=widen` for libraries)
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