mctp/server: satisfy clippy format args in dispatch test

services/mctp/server/tests/dispatch.rs

diff --git a/services/mctp/server/tests/dispatch.rs b/services/mctp/server/tests/dispatch.rs
index 6336796..523f0b5 100644
--- a/services/mctp/server/tests/dispatch.rs
+++ b/services/mctp/server/tests/dispatch.rs
@@ -27,7 +27,7 @@
     match dispatch_mctp_op(request, response, server, recv_buf, 0) {
         DispatchOutcome::Reply(n) => n,
         DispatchOutcome::Pending { handle } => {
-            panic!("unexpected Pending for handle {:?}", handle)
+            panic!("unexpected Pending for handle {handle:?}")
         }
     }
 }