[tlbuild] Security: Lua update and rebuild required

[Akira Kakuto]

On 2020/10/05 8:03, Norbert Preining wrote:
> Well, then a backport might be necessary. If you include literate (or
> nearly literate) copies of libraries, the burden of security updates and
> backports falls onto you.

I don't know details but the release date of lua-5.3.6, bug-fixed
version of lua-5.3.5, is 2020/09/25, very recent.
Did the lua team ignore the security issue?
In any case, tests by Luigi are appreciated.

Best,
Akira