* Due to the fact that the `CIRCLE_WORKFLOW_ID` does not actually return the name of the workflow, but a unique id that is generated dynamically, the cronjob does not run against the Angular github builds.
* Sets up a cronjob workflow that runs the local browser tests against the Angular Github snapshot builds at midnight everyday.
* No longer saves cache multiple times. This can cause unexpected behavior.
* Sorts jobs in `config.yml` to group all `tests_XX` jobs.
Closes#12516.