fix(deps): pin Tokio version to 1.40.0 for compatibility and stability

Author: Gioee

Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 
 [dependencies]
 rmcp = { path = "modules/mcp/crates/rmcp", features = ["client", "transport-sse-client-reqwest", "transport-streamable-http-client-reqwest"] }
-tokio = { version = "1", features = ["rt-multi-thread", "sync", "time", "macros"], default-features = false }
+tokio = { version = "=1.40.0", features = ["rt-multi-thread", "sync", "time", "macros"], default-features = false }
 serde_json = { version = "1.0", default-features = false, features = ["std"] }
 reqwest = { version = "0.12", features = ["json", "rustls-tls"], default-features = false }
 lazy_static = "1.5"