Read lockfile from workspace on the info command, closes #4232

Editor assessment

Direct and diagnostic-friendly: the `cli` scope, the specific `info` command, and the workspace lockfile source make this immediately actionable for anyone whose `tauri info` misreported dependency versions in workspace setups. Imperative mood, no trailing period, and roughly 75 characters with references—just over the truncation comfort zone; footer-placing `closes #4232` would trim it. No body explains why the lockfile was read from the wrong location before or what output changed, a small documentation gap for a diagnostic command. Patch bump inference is correct. Overall a clean, skimmable message doing its one job well.