Update node version (fixes errors with spaces in Windows usernames)

Without this, our recursive: true argument is ignored,
so config directories can't be created successfully.

Author: pimterry

package.json

@@ -100,7 +100,7 @@
         }
       },
       "node": {
-        "version": "10.0.0",
+        "version": "10.15.1",
         "targets": [
           "win32-x64",
           "win32-x86",