Update Luau to 0.715 #3451

Job	Run time
lute-lint	2m 58s
build-docs-site	3m 6s
run-lute-cxx-unittests (windows-latest, --c-compiler cl.exe --cxx-compiler cl.exe)	4m 5s
check-format	10s
run-lute-cxx-unittests (ubuntu-latest, --c-compiler gcc --cxx-compiler g++ --enable-sanitizers)	4m 20s
run-lute-cxx-unittests (macos-latest, --enable-sanitizers)	6m 12s
run-lutecli-luau-tests (ubuntu-latest, --c-compiler gcc --cxx-compiler g++ --enable-sanitizers, t...	5s
run-lute-cxx-unittests (ubuntu-latest, --c-compiler clang --cxx-compiler clang++ --enable-sanitiz...	4m 25s
run-lutecli-luau-tests (macos-latest, --enable-sanitizers, all)	5m 21s
run-lutecli-luau-tests (ubuntu-latest, --c-compiler clang --cxx-compiler clang++ --enable-sanitiz...	3s
run-lutecli-luau-tests (ubuntu-latest, --c-compiler gcc --cxx-compiler g++ --enable-sanitizers, p...	5m 27s
run-lutecli-luau-tests (windows-latest, --c-compiler cl.exe --cxx-compiler cl.exe, all)	5m 1s
run-lutecli-luau-tests (ubuntu-latest, --c-compiler clang --cxx-compiler clang++ --enable-sanitiz...	4m 10s
lute-check	3m 17s
Gated Commits	2s
	48m 42s

Provide feedback