Update rmcp to 0.14.0 and uuid to 1.20.0

[bug-ops]

Summary

Update core dependencies to latest versions:

• Bump rmcp from 0.13.0 to 0.14.0
• Bump uuid from 1.19.0 to 1.20.0
• Add explicit uuid features (v4, serde) to mcp-server crate

Changes

• Update rmcp dependency in workspace Cargo.toml
• Update uuid dependency in workspace Cargo.toml
• Specify uuid features in mcp-server/Cargo.toml
• Update Cargo.lock with transitive dependency updates

Test plan

• Verify all tests pass: cargo nextest run --workspace
• Check compilation: cargo build --workspace
• Confirm no breaking changes in updated dependencies