Bump Rust 1.94.0.

Signed-off-by: Jason Volk <jason@zemos.net>

src/api/mod.rs

@@ -1,5 +1,5 @@
 #![expect(clippy::toplevel_ref_arg)]
-#![expect(clippy::duration_suboptimal_units)] // remove after MSRV 1.91
+#![allow(unused_features)] // 1.96.0-nightly 2026-03-07 bug
 
 pub mod client;
 pub mod router;

src/api/server/key.rs

@@ -61,7 +61,7 @@ pub(crate) async fn get_server_keys_route(
 }
 
 fn valid_until_ts() -> MilliSecondsSinceUnixEpoch {
-	let dur = Duration::from_secs(86400 * 7);
+	let dur = Duration::from_hours(168);
 	let timepoint = timepoint_from_now(dur).expect("SystemTime should not overflow");
 	MilliSecondsSinceUnixEpoch::from_system_time(timepoint).expect("UInt should not overflow")
 }