Log Message:
lua-language-server: update to version 3.6.19

Changelog (taken from \ 
https://github.com/LuaLS/lua-language-server/releases/tag/3.6.19):

3.6.19 Latest
19906a9
What's Changed

    Readme refresh by @carsakiller in #2028
    Add desc of skynet.task api by @Gowa2017 in #2024
    更新 by @CppCXY in #2043
    Add optional diagnostic warning about any global element by \ 
@AndreaWalchshoferSCCH in #2040
    add support for musl version in github actions by @ericwq in #2049
    update for feature_request_102 by @CppCXY in #2052
    fix: add links to too many files warning by @carsakiller in #2080
    update and fix issue by @CppCXY in #2075
    Check for missing @param and @return annotations by @wetzlmaier in #2078