OSPatching creates the wrong crontab schedule

Extension creates the following record in the /etc/crontab file

**for "dayOfWeek" = "Everyday";**

We can see the error
**Incorrect day of week**

```
27 16 * * [1, 2, 3, 4, 5, 6, 7] root cd /var/lib/waagent/Microsoft.OSTCExtensions.OSPatchingForLinux-2.3.0.1 && python check.py 1 && python handler.py -download > /dev/null 2>&1
27 17 * * [1, 2, 3, 4, 5, 6, 7] root cd /var/lib/waagent/Microsoft.OSTCExtensions.OSPatchingForLinux-2.3.0.1 && python check.py 1 && python handler.py -patch >/dev/null 2>&1
28 17 * * [1, 2, 3, 4, 5, 6, 7] root rm -f /var/lib/waagent/Microsoft.OSTCExtensions.OSPatchingForLinux-2.3.0.1/StopOSPatching
```

Start by tracing how the OSPatching extension generates the /etc/crontab entries for dayOfWeek="Everyday"; the issue shows the generated commands invoking check.py and handler.py. Compare the resulting schedule with valid crontab syntax and verify that the Everyday case produces a valid day-of-week field.

Written by the indexing model from the issue text.