fix: updated the logic of nonces to be based on chain id instead of h…

…andler id

pallets/avn-anchor/src/lib.rs

@@ -542,4 +542,4 @@ pub fn encode_signed_submit_checkpoint_params<T: Config>(
 
 pub fn get_chain_data_for_handler<T: Config>(handler: &T::AccountId) -> Option<ChainDataStruct> {
     Pallet::<T>::chain_handlers(handler).and_then(|chain_id| Pallet::<T>::chain_data(chain_id))
-}
+}

pallets/avn-anchor/src/mock.rs

@@ -176,4 +176,4 @@ pub fn inner_call_failed_event_emitted(call_dispatch_error: DispatchError) -> bo
         }) => dispatch_error == call_dispatch_error,
         _ => false,
     })
-}
+}

pallets/avn-anchor/src/tests.rs

@@ -623,4 +623,4 @@ fn checkpoint_id_overflow_fails() {
             Error::<TestRuntime>::NoAvailableCheckpointId
         );
     });
-}
+}