docs(v2): Added kotest to showcase (#4262)

* Add files via upload

* Update users.js

* Update users.js

Co-authored-by: Sébastien Lorber <slorber@users.noreply.github.com>

website/src/data/users.js

@@ -269,6 +269,15 @@ const users = [
     fbOpenSource: true,
     pinned: true,
   },
+  {
+    title: 'Kotest',
+    description: 'Kotlin test framework',
+    preview: require('./showcase/kotest.jpg'),
+    website: 'https://kotest.io',
+    source: 'https://github.com/kotest/kotest',
+    fbOpenSource: false,
+    pinned: false,
+  },  
   {
     title: 'SICOPE Model',
     description: 'An open source model-based testing tool for web applications',