do not enforce client-initiated only PathID with VecDeque capacity

Otherwise, we may consider valid solutions as invalid.

quiche/src/cid.rs

@@ -812,7 +812,7 @@ impl ConnectionIdentifiers {
     /// When the max path ID change.
     fn maybe_resize_pcids(&mut self) {
         // Assumption: only client-initiated paths.
-        self.pcids.resize((1 + self.max_path_id() / 2) as usize);
+        self.pcids.resize((1 + self.max_path_id()) as usize);
     }
 
     /// Sets the maximum path ID we allow, and specify if we should advertise