Addon manager takes wrong path when using Lua.addonManager.repositoryPath

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

Visual Studio Code Extension (sumneko.lua)

### Which OS are you using?

Windows

### What is the issue affecting?

Libraries

### Expected Behaviour

I expect it works with custom repository addons (workspaceStorage)

### Actual Behaviour

It works with official repository addons (globalStorage)

_important note: I copied the files from "workspaceStorage" to "globalStorage" to illustrate the problem. Without this, the custom library will not activate._

### Reproduction steps

1. Go to 'settings', search for 'Lua.addonManager.repositoryPath'
2. Type 'https://github.com/antim0118/LLS-Addons-LPYT'
3. Open 'Addon manager'
4. Activate any custom addon
5. Nothing happens (because it tries to find the addon in globalStorage folder)

### Additional Notes

_No response_

### Log File

[Log file](https://github.com/user-attachments/files/21246638/file_e.3A_.21Desktop_PortablePrograms_psp_LuaPlayerYT.200.5_Projects_3d_triangles_test.log)

Reproduce the issue by setting Lua.addonManager.repositoryPath to the linked repository and activating an addon through the Addon manager. Trace the addon manager's repository path resolution, then verify that custom repository addons load from workspaceStorage without copying them to globalStorage.

Written by the indexing model from the issue text.