3.1.1: GHCR, Composer 2.2.25, Ext builder upgrade

More versions, plus alpine tags

Add more PHP versions

Build with current CA certs by default

Fixes for bash 5

Use most recent PHP versions

3.0: add PHP 7.4, 8.0, Composer 2, etc.

Fix double-pushing some tags

May 7th Cloudflare IP update

Build multiple PHP versions per git release tag