Update docker.io/ghost Docker tag to v5.109.0

On both domains I upgraded Ghost successfully by means of Watchtower Docker container update with dependency update facilitated by Mend's Renovate Bot.

This MR contains the following updates:

Package Update Change
docker.io/ghost minor 5.108.2 -> 5.109.0

Release Notes

TryGhost/Ghost (docker.io/ghost)

v5.109.0: 5.109.0

Compare Source

  • 🔒 Made names for uploaded files more secure and resilient to filesystems' limits (#​22055) - Marius Cremer, Sag
  • ✨ Enabled publishers to block additional email domains in member signups (#​22047) - Sag
  • 🐛 Fixed dropdowns in Members filters (#​22082) - Daniël van der Winden
  • 🌐 Updated Norwegian translations (#​21958) - Audun
  • 🌐 Updated Spanish translations (#​21956) - .hj barraza
  • 🌐 Added missing Scottish Gaelic translations (#​21979) - Chris Mitchell
  • 🌐 Updated Bulgarian translations (#​21932) - Yovko Lambrev
  • 🌐 Added and improved Dutch translations (#​21959) - R

View the changelog for full details: https://github.com/tryghost/ghost/compare/v5.108.2...v5.109.0