Make futures non-optional

Cargo.toml

@@ -28,7 +28,7 @@ bytes = { version = "1.7.1", optional = true }
 custom_debug = { workspace = true }
 netdev = { version = "0.30.0" }
 eyre = { workspace = true }
-futures = { workspace = true, optional = true }
+futures = { workspace = true }
 http = { version = "1.1.0", optional = true }
 indexmap = { version = "2.5.0", features = ["serde"], optional = true }
 macro_rules_attribute = "0.2.0"
@@ -89,7 +89,7 @@ safetymonitor = ["__anydevice"]
 switch = ["__anydevice"]
 telescope = ["__anydevice", "dep:time"]
 
-client = ["dep:async-fn-stream", "dep:futures", "dep:tracing-futures", "dep:reqwest", "dep:bytes", "dep:mime", "dep:rand", "dep:once_cell"]
+client = ["dep:async-fn-stream", "dep:tracing-futures", "dep:reqwest", "dep:bytes", "dep:mime", "dep:rand", "dep:once_cell"]
 server = ["dep:bytemuck", "dep:axum", "dep:http", "dep:sailfish", "dep:indexmap", "dep:serde_plain"]
 
 nightly = []