we DO patch the `date` module:

```
projects[date][subdir] = "contrib"
projects[date][version] = "2.11-rc1"
; Patch to fix Issue #3067396: Date CSS not added for date_select Form API elements
projects[date][patch][] = "http://www.drupal.org/files/issues/2019-07-16/date-select-css-3067396-3.patch"
```