chore(package): update tempy to version 0.3.0

Author: greenkeeper[bot]

package.json

@@ -39,7 +39,7 @@
     "nyc": "^14.0.0",
     "semantic-release": "^15.0.0",
     "sinon": "^7.1.1",
-    "tempy": "^0.2.1",
+    "tempy": "^0.3.0",
     "xo": "^0.24.0"
   },
   "engines": {