Update image used for Doxygen CI

The current image centos:8 does not work anymore as CentOS 8 has reached EOL. The mirrors to packages are no longer valid.

This updates the doxygen CI (only user of centos:8) to the latest supported CentOS Stream 8.

Also it uses image from quay.io instead of DockerHub. Apparently all official base images are there. closest thing to an announcement