Added swag opportunity for Umbraco (#1162)

Co-authored-by: ehu01 <edwin_hu@intuit.com>
Co-authored-by: Zadkiel Aharonian <zadkiel.aharonian@gmail.com>

data.json

@@ -827,6 +827,15 @@
     "dateAdded": "2019-10-04T15:17:00.000Z",
     "tags": ["hacktoberfest", "stickers", "expired"]
   },
+  {
+    "name": "Umbraco",
+    "difficulty": "medium",
+    "description": "Have at least 1 contribution approved on any Umbraco repository or Umbraco Package repository or on the Hacktoberfest Activity Log to get an awesome t-shirt.",
+    "reference": "https://umbraco.com/blog/umbraco-hacktoberfest-2023/",
+    "image": "https://umbraco.com/media/yjchye0t/seb_hacktoberfest.jpeg?quality=80",
+    "dateAdded": "2023-10-19T20:27:00.000Z",
+    "tags": ["hacktoberfest", "clothing"]
+  },
   {
     "name": "Uno",
     "difficulty": "easy",