docs: Update Custom Domains (tier)

Author: igorlukanin

docs/content/Deployment/Cloud/Custom-Domains.mdx

@@ -13,7 +13,7 @@ You can also assign a custom domain to your deployment.
 <SuccessBox>
 
 Custom domains are available in Cube Cloud on
-[Enterprise Premier](https://cube.dev/pricing) tier.
+[Premium](https://cube.dev/pricing) tier.
 [Contact us](https://cube.dev/contact) for details.
 
 </SuccessBox>