src: fix indentation for `AsyncResource`
This un-breaks the linter, which currently does not seem to run on this part of the file.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This un-breaks the linter, which currently does not seem to run on this part of the file.
make -j4 test
(UNIX), or vcbuild test
(Windows) passes