lua-language-server not detecting types when destructuring Tuple types with ~table.unpack~

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

Other

### Which OS are you using?

Windows

### What is the issue affecting?

Diagnostics/Syntax Checking

### Expected Behaviour

I might be wrong here, but I assume this should work?
Language server should detect the types from the defined tuple:

```lua
---@alias my_tuple { [1]: integer, [2]: boolean }

---@type my_tuple
local tuple = {1, true}

--- This works!
local a, b = tuple[1], tuple[2]

--- This gets "integer" for "c", but "unknown" for "d:
local c, d = table.unpack(tuple)
```

### Actual Behaviour

```lua
---@alias my_tuple { [1]: integer, [2]: boolean }

---@type my_tuple
local tuple = {1, true}

--- "c" should be "integer" and "d" "boolean":
local c, d = table.unpack(tuple)
```

### Reproduction steps

1. Define tuple like I did
2. Create such tuple
3. `unpack` to two variables

### Additional Notes

I'm not sure if this is a feature that is even considered, but since I do use unpack sometimes to destructure tuples into their distinct variables, I feel this would be a good feature to have.

### Log File

_No response_

Start by reproducing the issue with the tuple and table.unpack example in the report, then trace the language server's type inference for multiple assignment and unpacked tables. No source files or tests are named; done means the example infers c as integer and d as boolean without regressing existing tuple diagnostics.

Written by the indexing model from the issue text.