ci: disabled automatic vercel deployments

Author: marcinkrasowski

apps/docs/vercel.json

@@ -1,4 +1,11 @@
 {
+    "public": false,
+    "github": {
+        "enabled": false
+    },
+    "git": {
+        "deploymentEnabled": false
+    },
     "redirects": [
         {
             "source": "/index.html",