Update repository_environments documentation

Added a note about permissions for GitHub API access.

Author: deiga

website/docs/d/repository_environments.html.markdown

@@ -9,6 +9,9 @@ description: |-
 
 Use this data source to retrieve information about environments for a repository.
 
+> [!NOTE]
+> Verify you have the correct permissions set up from the [GitHub API docs](https://docs.github.com/en/rest/deployments/environments?apiVersion=2022-11-28#get-an-environment--fine-grained-access-tokens) 
+
 ## Example Usage
 
 ```hcl