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

---

Release Notes

modelcontextprotocol/rust-sdk (rmcp)

v2.0.0

Compare Source

Added

• [breaking] relax tool result structuredContent type (#​919)
• deprecate roots/sampling/logging types (#​923)
• [breaking] align model types with MCP 2025-11-25 spec (#​927)

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)
• (rmcp) add Audio variant to PromptMessageContent (#​865)

Other

• consolidate repeated rmcp tests (#​931)
• Revert "feat!: relax tool result structuredContent type (#​919)" (#​932)
• align README examples with v2 model API (#​928)

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.