1.51.0-1

What's Changed

• Fix use-after-free in new_thread by @squeek502 in #770
• feat: add binding for semaphore to test synchronization by @truemedian in #774
• ci: Add check that docs.md and meta.lua are up-to-date by @squeek502 in #768
• docs: move to new directory by @Bilal2453 in #772
• Remove unused function luv_gc_cb by @squeek502 in #773

Full Changelog: 1.51.0-0...1.51.0-1