Fix exception on add reserved catalog product attribute (#2875)

* Fixed exception on add reserved catalog product attribute

* Add @AGelzer as a contributor

* Changed all contributors badge template to html

.all-contributorsrc

@@ -10,6 +10,7 @@
   "commit": true,
   "commitConvention": "none",
   "contributorTemplate": "<a href=\"<%= contributor.profile %>\"><img src=\"<%= contributor.avatar_url %>\" loading=\"lazy\" width=\"<%= options.imageSize %>\" alt=\"\"/><br /><sub><b><%= contributor.name %></b></sub></a>",
+  "badgeTemplate": "<a href=\"#contributors-\"><img src=\"https://img.shields.io/badge/all_contributors-<%= contributors.length %>-orange.svg\" alt=\"All Contributors\"></a>",
   "contributors": [
     {
       "login": "sreichel",
@@ -1363,6 +1364,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "AGelzer",
+      "name": "Alexander Gelzer",
+      "avatar_url": "https://avatars.githubusercontent.com/u/34437931?v=4",
+      "profile": "https://github.com/AGelzer",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7