Add metrics collector

Author: danimhr

Cargo.lock

@@ -29,6 +29,10 @@ tokio-stream = "0.1.17"
 tracing = "0.1.41"
 tracing-subscriber = { version = "0.3.19", features = ["env-filter", "json"] }
 wormhole-vaas-serde = "0.1.0"
+axum = "0.8.4"
+metrics = "0.24.2"
+lazy_static = "1.5.0"
+axum-prometheus = "0.9.0"
 
 [dev-dependencies]
 serde_json = "1.0.140"