Fix fac.gov Route53 zone ID copy/paste error

[geekygirlsarah]

• [ ] This is a new public-facing site (if so, please follow the additional instructions below)
  • [ ] Provide context
  • [ ] Assign to @18F/osc for review
  • [ ] TTS Digital Council's new site review process completed
  • [ ] Update the inventory with new site information

Found a copy/paste residual from copying something from 18f.gov to fac.gov. This changes the zone ID back to FAC's own zone.