GitLab

refer to https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/connectors-using\?tabs\=cURL\#example-of-connector-message

it can easily confuse people before becuase when people accidentally set `env.USER_PERMISSIONS_CHAT_DELETION` to `true/yes/Yes`, `USER_PERMISSIONS["chat"]["deletion"]` would become `False`, which is unexpectedly and hard to notice.

Allow Chat Deletion