feat(google-gemini): update model YAMLs [bot]

[models-bot]

Auto-generated by poc-agent for provider google-gemini.

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Note

Low Risk
Metadata-only provider YAML updates with no application or API logic changes.

Overview
Adds reasoning_effort to removeParams on gemini-embedding-2-preview and gemma-3n-e4b-it, so provider-default chat/reasoning knobs are not exposed for these models.

This matches how other non-reasoning Google Gemini YAMLs (e.g. image, TTS) already drop reasoning_effort when it is inherited from default.yaml but not applicable.

^{Reviewed by Cursor Bugbot for commit 2c8ff9f. Bugbot is set up for automated code reviews on this repo. Configure here.}

[github-actions]

/test-models

[harshiv-26]

Gateway test results

• Total: 2
• Passed: 1
• Failed: 0
• Validation failed: 0
• Errored: 0
• Skipped: 1
• Success rate: 100.0%

Provider	Model	Scenarios
google-gemini	gemini-embedding-2-preview	success: params
google-gemini	gemma-3n-e4b-it	skipped: skip-check

Successes (1)

google-gemini/gemini-embedding-2-preview — params (success)

Output

[[0.029285947, -0.023061886, -0.0111178635, 0.01732219, 0.01619499, 0.0016186219, -0.0022729875, 0.0076466515, -0.0024231626, -0.0653467, -0.022182684
... (truncated, 42171 chars omitted)

Skipped (1)

google-gemini/gemma-3n-e4b-it — skip-check (skipped)

Skip reason

Provisioned model