chore(rust): Bump tokio from 1.48.0 to 1.49.0 in /rust (#3866)

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.48.0 to 1.49.0.

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

rust/Cargo.lock

@@ -38,7 +38,7 @@ arrow-buffer = "57.1.0"
 arrow-schema = "57.1.0"
 datafusion = { version = "51.0.0", default-features = false }
 datafusion-substrait = { version = "51.0.0", default-features = false }
-tokio = { version = "1.48", features = ["rt-multi-thread"] }
+tokio = { version = "1.49", features = ["rt-multi-thread"] }
 prost = "0.14.1"
 
 [dev-dependencies]