Bump luau from e8a7acb to 77295c3

Bumps [luau](https://github.com/Roblox/luau) from `e8a7acb` to `77295c3`.
- [Release notes](https://github.com/Roblox/luau/releases)
- [Commits](luau-lang/luau@e8a7acb...77295c3)

---
updated-dependencies:
- dependency-name: luau
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>