Update dependency payrexx/payrexx to v2

Author: renovate[bot]

core/components/commerce_payrexx/composer.json

@@ -1,7 +1,7 @@
 {
   "require": {
     "php": ">=7.4.0",
-    "payrexx/payrexx": "^1.8"
+    "payrexx/payrexx": "^2.0"
   },
   "config": {
     "platform": {