On February 3rd, 2020 at 23:32 (UTC) your application (Phabricator) used an access token (with the User-Agent PhutilGitHubAuthAdapter) as part of a query parameter to access an endpoint through the GitHub API:
Please use the Authorization HTTP header instead as using the access_token query parameter is deprecated.
Depending on your API usage, we'll be sending you this email reminder once every 3 days for each token and User-Agent used in API calls made on your behalf.
Just one URL that was accessed with a token and User-Agent combination will be listed in the email reminder, not all.
The GitHub Team
This is likely trivial to change.