deps: update tar to 4.4.12

Fixes: #1887
PR-URL: #1889
Reviewed-By: Rod Vagg <[email protected]>
Reviewed-By: Richard Lau <[email protected]>

Author: mmarchini

package.json

@@ -31,7 +31,7 @@
     "request": "^2.87.0",
     "rimraf": "2",
     "semver": "~5.3.0",
-    "tar": "^4.4.8",
+    "tar": "^4.4.12",
     "which": "1"
   },
   "engines": {