update node-coveralls

Author: nickmerwin

package.json

@@ -29,7 +29,7 @@
   "dependencies": {
     "@actions/core": "^1.2.6",
     "@actions/exec": "^1.0.4",
-    "coveralls": "^3.0.13",
+    "coveralls": "^3.1.1",
     "request": "^2.88.0"
   }
 }