To my knowledge, there is no way to accomplish this as the built-in Google Mail app has no configuration or policies that can be applied to it to restrict this and since the mail service does not use AAD, conditional access cannot be used either.
Asking in Google Android forum may get a different answer on whether or not the mail app has any configuration possibilities. If it does and assuming they are standard app config policies, then Intune should be able to push them out, but as noted, I don't think there are.