Bump rmcp from 0.4.0 to 0.7.0

Bumps [rmcp](https://github.com/modelcontextprotocol/rust-sdk) from 0.4.0 to 0.7.0.
- [Release notes](https://github.com/modelcontextprotocol/rust-sdk/releases)
- [Commits](modelcontextprotocol/rust-sdk@rmcp-v0.4.0...rmcp-v0.7.0)

---
updated-dependencies:
- dependency-name: rmcp
  dependency-version: 0.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -36,6 +36,6 @@ tracing     = { version = "0.1" }
 [dev-dependencies]
 # crates.io
 dotenvy            = { version = "0.15" }
-rmcp               = { version = "0.4", features = ["client", "reqwest", "transport-child-process", "transport-sse-client", "transport-streamable-http-client"] }
+rmcp               = { version = "0.7", features = ["client", "reqwest", "transport-child-process", "transport-sse-client", "transport-streamable-http-client"] }
 tokio              = { version = "1.47", features = ["full"] }
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }