Update propolis-client digest to 3db8c28

Author: oxide-renovate[bot]

Cargo.toml

@@ -30,7 +30,7 @@ slog-term = "2.9"
 slog-async = "2.8"
 slog-envlogger = "2.2"
 toml = "0.9"
-propolis-client = { git = "https://github.com/oxidecomputer/propolis", rev = "36f20be9bb4c3b362029237f5feb6377c982395f" }
+propolis-client = { git = "https://github.com/oxidecomputer/propolis", rev = "3db8c282441aad15c0e583280d8f9903373bd953" }
 libc = "0.2"
 tokio = { version = "1.49.0", features = ["full"] }
 tokio-tungstenite = "0.21"