chore: update shelljs-release

Author: nfischer

package.json

@@ -33,7 +33,7 @@
     "mocha": "^5.2.0",
     "shelljs": "^0.8.5",
     "shelljs-changelog": "^0.2.6",
-    "shelljs-release": "^0.2.0",
+    "shelljs-release": "^0.5.1",
     "should": "^13.2.3"
   },
   "peerDependencies": {