fix: pack fails in monorepo due to duplicate files

[yuzheng14]

When running vsce pack or vsce ls in a monorepo or workspace setup, duplicate files may appear in the packaged file list leading to pack fail.

This is because the internal dependency collection uses the output of:

npm list --production --parseable --depth=99999 --loglevel=error

However, this command always includes the project root directory as the first line of its output. As a result, when we later glob for files in each dependency directory, the root directory is also globbed, causing all files (including those in subdirectories like node_modules in sub packages) to be collected multiple times.

vscode-vsce/src/package.ts

Lines 1671 to 1675 in 294d71b

	const promises = deps.map(dep =>
	glob('**', { cwd: dep, nodir: true, follow: followSymlinks, dot: true, ignore: 'node_modules/**' }).then(files =>
	files.map(f => path.relative(cwd, path.join(dep, f))).map(f => f.replace(/\\/g, '/'))
	)
	);

You can reproduce this at yuzheng14/valype (temporarily it would exist in feat/vscode-extension branch only).

Fixes #812