Bump dev dependencies

Author: sindresorhus

package.json

@@ -60,15 +60,15 @@
 	"devDependencies": {
 		"ava": "*",
 		"chalk": "^2.0.1",
-		"coveralls": "^2.11.9",
+		"coveralls": "^3.0.0",
 		"del": "^3.0.0",
 		"eslint": "^4.0.0",
 		"eslint-ava-rule-tester": "^2.0.0",
-		"execa": "^0.7.0",
-		"listr": "^0.12.0",
+		"execa": "^0.8.0",
+		"listr": "^0.13.0",
 		"nyc": "^11.0.3",
 		"pify": "^3.0.0",
-		"tempy": "^0.1.0",
+		"tempy": "^0.2.1",
 		"xo": "*"
 	},
 	"peerDependencies": {