Update Cargo.toml (#1622)

Author: Dylan-DPC

tonic/Cargo.toml

@@ -69,7 +69,7 @@ prost = {version = "0.12", default-features = false, features = ["std"], optiona
 async-trait = {version = "0.1.13", optional = true}
 
 # transport
-h2 = {version = "0.3.17", optional = true}
+h2 = {version = "0.3.24", optional = true}
 hyper = {version = "0.14.26", features = ["full"], optional = true}
 hyper-timeout = {version = "0.4", optional = true}
 tokio-stream = "0.1"