Unable to detect any of global variables

[SirZenith]

Describe the bug
Whenever a global variable is used, language server throw an "Undefined global" warning.

To Reproduce
Steps to reproduce the behavior:

1. Create a file containing following code:

   Test = "foo"
   print(Test)
   

2. Warning should be popping up an the line we print Test.

Screenshots

Environment:

• OS: Ubuntu WSL and Android
• Is WSL remote? No.
• Client: neovim with native LSP

Additional context
Current lua-language-server version 3.0.0

Provide logs

[17:38:27.427][info] [#0:/home/luli/Applications/lua-language-server-3.0.0-linux-x64/main.lua:65]: Lua Lsp startup, root: 	/home/luli/Applications/lua-language-server-3.0.0-linux-x64
[17:38:27.427][info] [#0:/home/luli/Applications/lua-language-server-3.0.0-linux-x64/main.lua:66]: ROOT:	/home/luli/Applications/lua-language-server-3.0.0-linux-x64
[17:38:27.427][info] [#0:/home/luli/Applications/lua-language-server-3.0.0-linux-x64/main.lua:67]: LOGPATH:	/home/luli/Applications/lua-language-server-3.0.0-linux-x64/log
[17:38:27.427][info] [#0:/home/luli/Applications/lua-language-server-3.0.0-linux-x64/main.lua:68]: METAPATH:	/home/luli/Applications/lua-language-server-3.0.0-linux-x64/meta
[17:38:27.427][info] [#0:/home/luli/Applications/lua-language-server-3.0.0-linux-x64/main.lua:69]: VERSION:	3.0.0
[17:38:27.460][info] [#0:script/service/service.lua:141]: 
========= Medical Examination Report =========
    --------------- Memory ---------------
        Total: 1.337 MB
        # 00 : 1.337 MB
        # 01 : 0.000 MB
        # 02 : 0.000 MB
        # 03 : 0.000 MB
        # 04 : 0.000 MB
    --------------- Coroutine ---------------
        Total:     0
        Running:   0
        Suspended: 0
        Normal:    0
        Dead:      0
    --------------- Cache ---------------
        Total: 1
        Dead:  0
    ---------------  RPC  ---------------
        Holdon:   0
        Waiting:  0
==============================================
[17:38:27.565][info] [#0:script/language.lua:135]: VSC language: nil
[17:38:27.565][info] [#0:script/language.lua:136]: LS  language: en-us
[17:38:27.671][info] [#0:script/provider/provider.lua:52]: Load config from client	fallback
[17:38:27.671][info] [#0:script/library.lua:207]: Init builtin library at:	nil
[17:38:27.689][info] [#0:script/plugin.lua:80]: plugin path:	nil
[17:38:27.689][info] [#0:script/provider/provider.lua:52]: Load config from client	fallback
[17:38:27.689][info] [#0:script/workspace/workspace.lua:278]: Preload start:	<fallback>
[17:38:27.689][info] [#0:script/workspace/workspace.lua:294]: Scan library at:	file:///home/luli/Applications/lua-language-server-3.0.0-linux-x64/meta/Lua%205.4%20en-us%20utf8
[17:38:27.690][warn] [#0:script/proto/proto.lua:122]: Response of [workspace/semanticTokens/refresh] error [-32601]: MethodNotFound
[17:38:27.690][warn] [#0:script/proto/proto.lua:122]: Response of [workspace/semanticTokens/refresh] error [-32601]: MethodNotFound
[17:38:29.483][info] [#0:script/workspace/workspace.lua:308]: Found 11 files at:	<fallback>
[17:38:29.519][info] [#0:script/workspace/loading.lua:154]: Loaded finish.
[17:38:29.519][info] [#0:script/workspace/workspace.lua:310]: Preload finish at:	<fallback>
[17:38:29.519][info] [#0:script/provider/diagnostic.lua:388]: Diagnostics scope [<fallback>], files count:[12]
[17:38:29.524][info] [#0:script/provider/diagnostic.lua:405]: Diagnostics scope [<fallback>] finished, takes [0.005] sec.
[17:38:33.483][info] [#0:script/provider/diagnostic.lua:388]: Diagnostics scope [<fallback>], files count:[11]
[17:38:33.483][info] [#0:script/provider/diagnostic.lua:405]: Diagnostics scope [<fallback>] finished, takes [0.000] sec.

[SirZenith]

And this is not happening in VS Code with server version 3.0.0