upgrades tar version from 6.0.2 to 6.1.11

Author: Tenaria

package-lock.json

@@ -71,7 +71,7 @@
     "rfc4648": "^1.3.0",
     "shelljs": "^0.8.5",
     "stream-buffers": "^3.0.2",
-    "tar": "^6.0.2",
+    "tar": "^6.1.11",
     "tmp-promise": "^3.0.2",
     "tslib": "^1.9.3",
     "underscore": "^1.9.1",