Indentation when formatting off for values inside square brackets

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### How are you using the lua-language-server?

Other (Defold's built-in text editor)

### Which OS are you using?

Linux (also happens on other platforms)

### What is the issue affecting?

Formatting

### Expected Behaviour

Hello, thank you for LuaLS!

There is a small issue that we have found when formatting a Lua file and indentation;

```lua
local v = t[
key(1)
]
```

### Actual Behaviour

This is how the formatter leaves it;

```lua
local v = t[
key(1)
]
```

### Reproduction steps

https://github.com/defold/defold/pull/12995

1. In the Defold Editor's text editor, in a Lua script file, type
```lua
local v = t[
key(1)
]
```

2. Run the document formatter function with `Alt+Shift+F` or from the top menu `Edit > Format Document/Selection`
3. `key(1)` falls back to previous column

### Additional Notes

_No response_

### Log File

_No response_

Reproduce el problema en el editor de texto integrado de Defold usando el fragmento de Lua y el comando Format Document; después, sigue la ruta de formateo de LuaLS que gestiona las expresiones dentro de corchetes. Se considera terminado cuando el formateo conserva la indentación delante de key(1), también en la reproducción vinculada de Defold.

Escrito por el modelo de indexación a partir del texto del issue.