chore(deps): update rust crate rmcp to v2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
rmcp	workspace.dependencies	major	1.0.0 → 2.0.0

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Release Notes

modelcontextprotocol/rust-sdk (rmcp)

v2.1.0

Compare Source

Added

• add SEP-414 trace context meta accessors (#​910)
• add SEP-2575 meta helpers (#​942)

Fixed

• (transport) make AsyncRwTransport::receive cancel-safe (#​941) (#​947)
• (auth) preserve refresh_token when refresh response omits it (#​949)
• block redirect header leaks (#​936)
• don't respond to unparsable messages (#​940)
• negotiate protocol version in handler (#​930)

v2.0.0

Compare Source

Migration guide: https://redirect.github.com/modelcontextprotocol/rust-sdk/discussions/926

Added

• [breaking] (rmcp) add Audio variant to PromptMessageContent (#​865)
• [breaking] align model types with MCP 2025-11-25 spec (#​927)
• deprecate roots/sampling/logging types (#​923)

Fixed

• prevent OAuth resource spoofing (#​937)
• block oauth metadata ssrf (#​935)
• prevent streamable HTTP session leak (#​934)
• fill missing fully qualified syntax in prompt_handler macros (#​866)

Other

• consolidate repeated rmcp tests (#​931)
• align README examples with v2 model API (#​928)

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