Change the actix prometheus version to the latest stable

Author: maximopalopoli

aggregation_mode/gateway/Cargo.toml

@@ -16,7 +16,7 @@ tracing-subscriber = { version = "0.3.0", features = ["env-filter"] }
 bincode = "1.3.3"
 actix-web = "4"
 actix-multipart = "0.7.2"
-actix-web-prometheus = "0.1.0-beta.8"
+actix-web-prometheus = "0.1.2"
 alloy = { workspace = true }
 tokio = { version = "1", features = ["time"]}
 # TODO: enable tls