Bump Dependencies/Luau from cdd1a38 to 974963a

Bumps [Dependencies/Luau](https://github.com/roblox/luau) from `cdd1a38` to `974963a`.
- [Release notes](https://github.com/roblox/luau/releases)
- [Commits](luau-lang/luau@cdd1a38...974963a)

---
updated-dependencies:
- dependency-name: Dependencies/Luau
  dependency-type: direct:production
...

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