doc: remove usage of deprecated V8 APIs in addons.md
@addaleax @ryzokuken @jasnell
Checklist
-
make -j4 test(UNIX), orvcbuild test(Windows) passes -
documentation is changed or added -
commit message follows commit guidelines
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
@addaleax @ryzokuken @jasnell
make -j4 test (UNIX), or vcbuild test (Windows) passes