Tag/attribute paths resolved based on package name instead of dependency name

[glen-84]

• I have searched through existing issues
• I have read through docs
• I have read FAQ
• I have tried restarting VS Code or running Vetur: Restart VLS

Info

• Platform: Win
• Vetur version: 0.34.1
• VS Code version: 1.59.0

Problem

I created a temporary fork of Vuetify 3 (alpha), and installed it like this:

"vuetify": "npm:@company/vuetify-fork@^3.0.0-alpha.10-2"

Vetur tries to load the tags and attributes JSON using the package name instead of the dependency/installation directory name:

vetur/server/src/modes/template/tagProviders/externalTagProviders.ts

Lines 57 to 58 in 6873d24

	const tagsPath = require.resolve(path.join(depPkgJson.name, depPkgJson.vetur.tags), { paths: [packageRoot] });
	const attrsPath = require.resolve(path.join(depPkgJson.name, depPkgJson.vetur.attributes), {

It tries to load @company\vuetify-fork\dist\json\tags.json instead of vuetify\dist\json\tags.json.

[Error - 21:07:54] Error: Cannot find module '@company\vuetify-fork\dist\json\tags.json'
Require stack:
- c:\Users\Glen\.vscode\extensions\octref.vetur-0.34.1\server\dist\vls.js
- c:\Users\Glen\.vscode\extensions\octref.vetur-0.34.1\server\dist\vueServerMain.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:934:15)
    at Function.resolve (internal/modules/cjs/helpers.js:94:19)
    at getDependencyTagProvider (c:\Users\Glen\.vscode\extensions\octref.vetur-0.34.1\server\dist\vls.js:735:3531)
    at getTagProviderSettings (c:\Users\Glen\.vscode\extensions\octref.vetur-0.34.1\server\dist\vls.js:735:6541)
    at new HTMLMode (c:\Users\Glen\.vscode\extensions\octref.vetur-0.34.1\server\dist\vls.js:736:1524)
    at new VueHTMLMode (c:\Users\Glen\.vscode\extensions\octref.vetur-0.34.1\server\dist\vls.js:746:3916)
    at cP.init (c:\Users\Glen\.vscode\extensions\octref.vetur-0.34.1\server\dist\vls.js:874:1439)
    at createProjectService (c:\Users\Glen\.vscode\extensions\octref.vetur-0.34.1\server\dist\vls.js:874:3677)
    at hP.getProjectService (c:\Users\Glen\.vscode\extensions\octref.vetur-0.34.1\server\dist\vls.js:875:10795)
    at async hP.onCodeAction (c:\Users\Glen\.vscode\extensions\octref.vetur-0.34.1\server\dist\vls.js:875:16578)

Reproducible Case

n/a