doc: fix metadata for v11.8.0 doc changes
Refs: https://github.com/nodejs/node/commit/641de82404d5fa381053e0f5abd522c7f5881e5a
cc @MylesBorins
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
documentation is changed or added -
commit message follows commit guidelines