docs(auth): fix keycloak scopes for js client v2

apps/docs/pages/guides/auth/auth-keycloak.mdx

@@ -65,10 +65,12 @@ When your user signs in, call [signInWithOAuth()](/docs/reference/javascript/aut
 
 ```js
 async function signInWithKeycloak() {
-  const { data, error } = await supabase.auth.signInWithOAuth(
-    {provider: 'keycloak'},
-    {scopes: 'openid'},
-  )
+  const { data, error } = await supabase.auth.signInWithOAuth({
+    provider: 'keycloak',
+    options: {
+      scopes: 'openid',
+    },
+  })
 }
 ```