deps: bump V8 patch to 84
Checklist
-
make -j8 test
(UNIX), orvcbuild test nosign
(Windows) passes -
commit message follows commit guidelines
Affected core subsystem(s)
deps
Description of change
The patch should have been bumped in aafc314 but it was missed.
Ref: https://github.com/nodejs/node/commit/aafc314a8322e102dad239105a8f4a52903aaede Ref: https://github.com/nodejs/node/pull/8673