Update Rust crate tower to 0.5

Author: renovate[bot]

Cargo.toml

@@ -19,7 +19,7 @@ opentelemetry = { version = "0.22", features = ["trace"], optional = true }
 opentelemetry-http = { version = "0.11", optional = true }
 opentelemetry-otlp = { version = "0.15", default-features = false, features = ["grpc-tonic", "http-proto", "reqwest-client", "reqwest-rustls", "tls", "tls-roots", "trace"], optional = true }
 opentelemetry_sdk = { version = "0.22", features = ["rt-tokio"], optional = true }
-tower = { version = "0.4", default-features = false, optional = true }
+tower = { version = "0.5", default-features = false, optional = true }
 tower-http = { version = "0.5", default-features = false, features = ["trace"], optional = true }
 tracing = "0.1"
 tracing-error = "0.2"