Add Simple OpenTelemetry setup

Cargo.toml

@@ -37,3 +37,10 @@ prometheus = "0.13"
 lazy_static = "1.5"
 anyhow = "1.0"
 rand = "0.8.5"
+tempfile = "3.14.0"
+opentelemetry = { version = "0.28.0", features = ["default", "metrics", "tracing"] }
+opentelemetry_sdk = { version = "0.28.0", features = ["default", "rt-tokio-current-thread", "tracing", "metrics"] }
+opentelemetry-otlp = { version = "0.28.0", features = ["default", "metrics", "tracing", "grpc-tonic"] }
+opentelemetry-stdout = "0.28.0"
+opentelemetry-appender-log = "0.28.0"
+opentelemetry-resource-detectors = "0.7.0"