Replaced the old git icon url with a working one

dashboard/src/shared/common.tsx

@@ -20,8 +20,7 @@ export const integrationList: any = {
     buttonText: "Add a Cluster",
   },
   repo: {
-    icon:
-      "https://3.bp.blogspot.com/-xhNpNJJyQhk/XIe4GY78RQI/AAAAAAAAItc/ouueFUj2Hqo5dntmnKqEaBJR4KQ4Q2K3ACK4BGAYYCw/s1600/logo%2Bgit%2Bicon.png",
+    icon: "https://git-scm.com/images/logos/downloads/Git-Icon-1788C.png",
     label: "Git Repository",
     buttonText: "Link a Github Account",
   },