smaller fixes

src/interface/tcp.rs

@@ -1,5 +1,5 @@
 use std::{
-    collections::{HashSet, VecDeque},
+    collections::VecDeque,
     sync::{atomic::AtomicBool, Arc, Mutex},
     time::Duration,
 };
@@ -86,7 +86,7 @@ impl HandledConnectionHandler for ConnectionFinishedHandler {
 pub type TcpServerType<TcSource, MpscErrorType> = TcpSpacepacketsServer<
     SyncTcpTmSource,
     CcsdsDistributor<CcsdsReceiver<TcSource, MpscErrorType>, MpscErrorType>,
-    HashSet<PacketId>,
+    Vec<PacketId>,
     ConnectionFinishedHandler,
     (),
     CcsdsError<MpscErrorType>,