set xcm weights template (#1643)

* xcm benchmarks use a custom template

scripts/benchmarks-ci.sh

@@ -26,19 +26,19 @@ if [[ $runtimeName == "statemint" ]] || [[ $runtimeName == "statemine" ]] || [[
 		pallet_xcm_benchmarks::fungible
 	)
 elif [[ $runtimeName == "collectives-polkadot" ]]; then
-		pallets=(
-			pallet_alliance
-			pallet_balances
-			pallet_collator_selection
-			pallet_collective
-			pallet_multisig
-			pallet_proxy
-			pallet_session
-			pallet_timestamp
-			pallet_utility
-			cumulus_pallet_xcmp_queue
-			frame_system
-		)
+	pallets=(
+		pallet_alliance
+		pallet_balances
+		pallet_collator_selection
+		pallet_collective
+		pallet_multisig
+		pallet_proxy
+		pallet_session
+		pallet_timestamp
+		pallet_utility
+		cumulus_pallet_xcmp_queue
+		frame_system
+	)
 else
 	echo "$runtimeName pallet list not found in benchmarks-ci.sh"
 	exit 1
@@ -48,10 +48,13 @@ for pallet in ${pallets[@]}
 do
 	# a little hack for xcm benchmarks
 	output_file="${pallet//::/_}"
+	extra_args=""
   if [[ "$pallet" == *"xcm"* ]]; then
 		output_file="xcm/$output_file"
+		extra_args="--template=./templates/xcm-bench-template.hbs"
   fi
 	$artifactsDir/polkadot-parachain benchmark pallet \
+		$extra_args \
 		--chain=$benchmarkRuntimeName \
 		--execution=wasm \
 		--wasm-execution=compiled \