David Taylor 84bc4bf3d5
DEV: Do not print verbose console.debug messages in system specs (#19581)
Verbose messages are not shown by default in the chrome dev console. This commit applies the same behavior to system specs.

The main motivation here is to hide the version info which Ember prints every time the application boots.

```text
http://localhost:31337/assets/vendor.js 47142:16 "DEBUG: -------------------------------"
http://localhost:31337/assets/vendor.js 47142:16 "DEBUG: Ember  : 3.28.11"
http://localhost:31337/assets/vendor.js 47142:16 "DEBUG: jQuery : 3.6.0"
http://localhost:31337/assets/vendor.js 47142:16 "DEBUG: -------------------------------"
```
2022-12-22 16:47:33 +00:00
..
2022-10-26 09:05:15 +08:00