round shipment quote net value to 2 decimal digits

this should help us prevent rounding errors downstream when converting
back to net in odoo (SYS#6033)

composer.json

@@ -1,7 +1,7 @@
 {
   "name": "sysmocom/shopware6-shipcloud-live",
   "description": "shipcloud live quote pluging",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "type": "shopware-platform-plugin",
   "license": "AGPL-3.0-or-later",
   "authors": [

src/Core/Checkout/Cart/Delivery/SmcDeliveryProcessor.php

@@ -202,7 +202,7 @@ class SmcDeliveryProcessor implements CartProcessorInterface, CartDataCollectorI
 		$transport_insurance = (0.0035 * $value);
 
 		/* convert into a gross price, as API returns net */
-		$quote_eur_gross = ($quote_eur + $margin + $transport_insurance);
+		$quote_eur_gross = round($quote_eur + $margin + $transport_insurance), 2);
 		if ($context->getTaxState() === CartPrice::TAX_STATE_GROSS) {
 			/* FIXME: don't use static 19% but destination country specific rate */
 			$quote_eur_gross = $quote_eur_gross * 1.19;