Added ImageMagick-heic package to both Dockerfile and Dockerfile.fpm.
This is a separate EPEL subpackage that provides HEIC, HEIF, and AVIF
format support via libheif. Without it, ImageMagick is installed but
cannot process iPhone photos and modern image formats.
Also fixed MariaDB repo URL: AlmaLinux 10 uses $releasever=10 but
MariaDB mirrors don't have an 'almalinux10' directory. Changed to
'rhel10' which is the supported path for EL10 derivatives.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
