Remove port parameter from server_client_incorrect_atoms fixture following PR #94 changes

Co-authored-by: ljwoods2 <[email protected]>

Author: Copilot

imdclient/tests/test_imdclient.py

@@ -79,21 +79,21 @@ def server_client(self, universe, imdsinfo, request):
         client = IMDClient(
             f"localhost",
             server.port,
-            universe.trajectory.n_atoms,
+            universe.atoms.n_atoms,
         )
         server.join_accept_thread()
         yield server, client
         client.stop()
         server.cleanup()
 
     @pytest.fixture
-    def server_client_incorrect_atoms(self, universe, imdsinfo, port):
+    def server_client_incorrect_atoms(self, universe, imdsinfo):
         server = InThreadIMDServer(universe.trajectory)
         server.set_imdsessioninfo(imdsinfo)
-        server.handshake_sequence("localhost", port, first_frame=False)
+        server.handshake_sequence("localhost", first_frame=False)
         client = IMDClient(
             f"localhost",
-            port,
+            server.port,
             universe.atoms.n_atoms + 1,
         )
         server.join_accept_thread()