Changes to Start a browser use task

the version request property default value changed from 0.1.40 to 0.7.10

removed the enum value claude-sonnet-4-20250514 of the request property llm

removed the enum value claude-sonnet-4-20250514 of the request property pageExtractionLlm

removed the enum value claude-sonnet-4-20250514 of the request property plannerLlm

removed the enum value claude-sonnet-4-5 of the request property llm

removed the enum value claude-sonnet-4-5 of the request property pageExtractionLlm

removed the enum value claude-sonnet-4-5 of the request property plannerLlm

added subschema #4 to the sessionOptions/credentials/items request property oneOf list

added the new optional request property sessionOptions/credentials

added the new optional request property sessionOptions/proxyRoutes

added the new optional request property sessionOptions/webBotAuth

added the new optional request property sessionOptions/enableWebMcp

added the new claude-haiku-5-5 enum value to the request property llm

added the new claude-haiku-5-5 enum value to the request property pageExtractionLlm

added the new claude-haiku-5-5 enum value to the request property plannerLlm

added the new gemini-3.8-flash enum value to the request property llm

added the new gemini-3.8-flash enum value to the request property pageExtractionLlm

added the new gemini-3.8-flash enum value to the request property plannerLlm

added the new us enum value to the request property sessionOptions/region

added the new claude-sonnet-5 enum value to the request property llm

added the new claude-sonnet-5 enum value to the request property pageExtractionLlm

added the new claude-sonnet-5 enum value to the request property plannerLlm