Update lua to latest v5.4 #2693
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This version of lua improves tic80 performance and is compatible with current carts. Here's a performance comparison:
lua 5.3:
lua 5.4:
There's also a lua performance comparison in these articles:
https://eklausmeier.goip.de/blog/2020/05-14-performance-comparison-pallene-vs-lua-5-1-5-2-5-3-5-4-vs-c
https://muxup.com/2023q2/updating-wrens-benchmarks
Lua 5.4 changes: https://lwn.net/Articles/826134/