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 The mirrors to packages are no longer valid.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
Edited by Karol Krizka