feat(CI): Add CRON Job to Update `/ctfs`

[bliutech]

Currently, the script to update the YML file to see which CTFs we have competed in recently to add to the /ctfs page is run via only when an update to the main branch has occurred. Making this run as a CRON Job would make more sense to allow for the page to update regularly for static rendering.

[bliutech]

CTF Time added Cloudflare protections so now the script has some problems. Would also be nice to make it commit to the repo as well.