* Fix issues and documentation with integration tests after merge of #490. (#514)
* Fix explanation about containers images
* Add definitive URI to the containers images
* Document that new images must be set as public
* Document makefile options possible values
* Document that any mysql and mariadb tag can be used
* Add computation of docker_image path
* Refactor pre-command to separate commands for cleaner GHA output
* Refactor to use GHA test matrix
* Cut docker_image from documentation since it's now automatic
* Document how to use run_all_test.py to display the test matrix
(cherry picked from commit e2aa655762)
* Add changelog fragment
* Cut tests for MariaDB 10.5 and 10.6 that never worked with stable-1