ECE: map Universal Profiling domains to proxy certificates (#659)

We haven't yet included the Universal Profiling endpoints in the ECE
documentation, despite Universal Profiling being GA since a while.

This PR adds documentation to include the domains.

Co-authored-by: Edu González de la Herrán <[email protected]>

Author: inge4pres

deploy-manage/deploy/cloud-enterprise/enable-custom-endpoint-aliases.md

@@ -29,6 +29,7 @@ After installing or upgrading to version 2.10 or later:
     * For Kibana, the certificate needs to allow for ***.kb.<your-domain>**
     * For APM, the certificate needs to allow for ***.apm.<your-domain>**
     * For Fleet, the certificate needs to allow for ***.fleet.<your-domain>**
+    * For Universal Profiling, the certificate needs to allow for ***.profiling.<your-domain>** and ***.symbols.<your-domain>**
 
 3. In the **Platform** menu, select **Settings**.
 4. Under the **Enable custom endpoint alias naming**, toggle the setting to allow platform administrators and deployment managers to choose a simplified, unique URL for the endpoint.