Update image in script to run local integration tests in Docker
Update image in script to run local integration tests in Docker

PHP 7.3 support was dropped for Nextcloud 24. The Docker image is
updated to the same image used for integration tests in CI.

Signed-off-by: Daniel Calviño Sánchez <bd7629e975cc0e00ea7cda4ab6a120f2ee42ac1b@gmail.com>

nextcloud/spreed,nextcloud/spreed,nextcloud/spreed