examples: update dependencies

`tokio` v1.47 ; `tonic` v0.14

Author: flemosr

examples/Cargo.toml

@@ -21,5 +21,5 @@ path = "src/ext_authz/authorization_server_pb_only.rs"
 
 [dependencies]
 envoy-types = { path = "../envoy-types" }
-tokio = { version = "1.44", features = ["macros", "rt-multi-thread"] }
-tonic = "0.13"
+tokio = { version = "1.47", features = ["macros", "rt-multi-thread"] }
+tonic = "0.14"