include fine-grained access token

Author: bahrmichael

docs/admin/config/batch_changes.mdx

@@ -188,7 +188,7 @@ Batch Changes supports Commit Signing with GitHub Apps since version 5.1 and wit
 
 <Callout type="note"> This feature is supported only in Sourcegraph versions 6.2 or more.</Callout>
 
-Commit signing with SSH keys can only be used in combination with a personal access token.
+Commit signing with SSH keys can only be used in combination with a personal access token or fine-grained access token.
 
 Sourcegraph can be configured to sign commits using SSH keys, both with user and site admin credentials.