[website] Show chronik options in the online man page
Summary: Build with chronik to generate the man pages.
Test Plan:
Optional: bump min version to 0.29.0 to avoid building all the 0.28.0 versions if they are not cached.
./scripts/fetch_documentation.sh bundle exec jekyll serve
Check the 0.29.0 man page contains the chronik options.
Reviewers: #bitcoin_abc, bytesofman
Reviewed By: #bitcoin_abc, bytesofman
Differential Revision: https://reviews.bitcoinabc.org/D15891