fixup! chrono: use timestamp_opt() instead of the deprecated `times…

…tamp()` function

core/tls-websocket-server/src/certificate_generation.rs

@@ -67,7 +67,7 @@ pub fn ed25519_self_signed_certificate(
 ) -> WebSocketResult<Certificate> {
 	let mut params = CertificateParams::new(vec![common_name.to_string()]);
 	let now = SystemTime::now().duration_since(UNIX_EPOCH).expect("Error: UNIX_EPOCH");
-	let issue_ts = TzUtc.timestamp_opt(now.as_secs() as i64, 0).unwrap();
+	let issue_ts = TzUtc.timestamp_opt(now.as_secs() as i64, 0).expect("Error: this should not fail as long as secs fit into i64");
 	let year = issue_ts.year();
 	let month = issue_ts.month();
 	let day = issue_ts.day();