For #26609
This PR includes
- ability to get a DigiCert certificate to a macOS device
- integration test for the above
- some validation
This PR does not include the following. They will be included in
subsequent PRs:
- support for User Principal Name in certificate
- support for $FLEET_VAR_HOST_HARDWARE_SERIAL
- saving certificate expiration date
- not resending DigiCert profile after failure
# Checklist for submitter
- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
See [Changes
files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/Committing-Changes.md#changes-files)
for more information.
- [x] Added/updated automated tests
- [x] A detailed QA plan exists on the associated ticket (if it isn't
there, work with the product group's QA engineer to add it)
- [x] Manual QA for all new/changed functionality