chore: bump [email protected] to [email protected]

This has the benefit of removing a `process.umask()` that causes a
runtime deprecation warning if commands such as `npm ls` are run either
with Node.js pending deprecations enabled or with the current 15.0.0 RC.

Refs: nodejs/node#35332 (comment)
Refs: npm#1103

Author: Trott

package-lock.json

@@ -134,7 +134,7 @@
     "sorted-union-stream": "~2.1.3",
     "ssri": "^6.0.1",
     "stringify-package": "^1.0.1",
-    "tar": "^4.4.13",
+    "tar": "^6.0.5",
     "text-table": "~0.2.0",
     "tiny-relative-date": "^1.3.0",
     "uid-number": "0.0.6",