Make the context check in `MakeCallback` match what the comment says
(and what actually makes sense).
PR-URL: https://github.com/nodejs/node/pull/15691
Fixes: https://github.com/nodejs/node/issues/15672
Ref: https://github.com/nodejs/node/pull/15428
Ref: f27b5e4bda
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>