Create `teleport-ent-updater-fips` package

[webvictim]

What would you like Teleport to do?

There is a teleport-ent-updater package for automatically upgrading Teleport Enterprise.

There should also be a teleport-ent-updater-fips (or teleport-ent-fips-updater) package for FIPS users.

What problem does this solve?

FIPS customers need automatic upgrades too.

If a workaround exists, please include it.

Run echo teleport-ent-fips > /etc/teleport-upgrade.d/package every time the teleport-ent-updater package is upgraded.

[webvictim]

Related: https://github.com/gravitational/teleport/issues/29595