doc: fix broken using link in ffi.md
#94562
linters.yml
on: pull_request
lint-addon-docs
52s
lint-cpp
2m 20s
format-cpp
3m 22s
lint-js-and-md
6m 52s
lint-py
27s
lint-yaml
35s
lint-sh
13s
lint-codeowners
34s
lint-pr-url
7s
lint-readme
8s