Fix Tracker "idealTree:inflate:" already exists

Fixes https://github.com/npm/arborist/issues/330 as per solution described in comments.

Author: kirtangajjar

workspaces/arborist/lib/arborist/build-ideal-tree.js

@@ -738,7 +738,8 @@ This is a one-time fix-up, please be patient...
           : version || `file:${node.path}`
         const spec = npa.resolve(name, id, dirname(path))
         const sloc = location.substr('node_modules/'.length)
-        const t = `idealTree:inflate:${sloc}`
+        const rand = Math.random()
+        const t = `idealTree:inflate:${sloc}:${rand}`
         this.addTracker(t)
         await pacote.manifest(spec, {
           ...this.options,