chore: add Lua configuration to .editorconfig #122

Job	Run time
ci / Change Detection	4s
ci / StyLua	7s
ci / Setup Matrix	-1s
ci / shfmt	-1s
ci / Release Please	0s
ci / Markdownlint	-1s
ci / Detect Metadata	-1s
ci / Prettier	-1s
ci / Lua Language Server	-1s
ci / Publish to LuaRocks	0s
ci / Luacheck	0s
ci / Run Tests (${{ matrix.os }}, ${{ matrix.lua-version }})	0s
	5s

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