Update dependency google-cloud-aiplatform to v2

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
google-cloud-aiplatform	==1.156.0 → ==2.0.0

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Release Notes

googleapis/python-aiplatform (google-cloud-aiplatform)

v1.158.0

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Features

• Add ReasoningEngineRuntimeRevisionService and update related fields in ReasoningEngine (b51f0f6)
• GenAI client - Add update_corpus and update_config methods to the RAG module (237c562)
• GenAI SDK client - Add import_files method to RAG client (a5c6095)
• Release ReasoningEngineExecutionService.CancelAsyncQueryReasoningEngine v1 API (b51f0f6)
• Release ReasoningEngineExecutionService.CancelAsyncQueryReasoningEngine v1beta1 API (b51f0f6)

Bug Fixes

• GenAI client - Make vertex_rag_store a required arg for client.rag.retrieve_contexts and make the tools arg in ask_contexts part of config (60b0f84)
• GenAI Client(evals) - Strip ADK-injected params from plain callable tools (551c5bd)
• Keeping the non-default version of the model resource (14a2265)

v1.157.0

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Features

• GenAI client - Add delete_file and delete_corpus methods to RAG module (4a594dd)
• GenAI SDK client(multimodal) - Add to_batch_job_source and get_batch_job_destination to MultimodalDataset (116b71c)
• GenAI SDK client(multimodal) - Implement create_from_gemini_request_jsonl in Datasets and AsyncDatasets classes. (6e51cdf)

Bug Fixes

• Mark async test properly (a35f155)
• Remove authorization handling from ADK preview template (cb12436)
• Verify dedicated endpoint predict_async TLS against the certifi CA bundle (3b3471a)

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