Upgrades to v24.10

Additional fixes for bullseye upgrade

Upgrading to php8.1 and bookstack 22.11.1

Fixes for buster build

Moving back to buster and fixing gd issues, adding wkhtmltox

Updating to v22.04.2

Updating to latest bookstack release 21.12.5

Updating to v21.11

Bumping to v21.10.3

Updating to v21.08.3