Fix centos7 code

[sshnaidm]

Create a PR for repo with CI AI job

[github-actions]

The changes in this commit are mostly updates and improvements. Here are some specific points:

1. The file .github/workflows/aicodereview.yml has been deleted. This file was used to run code reviews using the OpenAI API. If you're no longer using this service, it's fine to delete it. But if you still need it, you might want to restore this file.

2. The base image in Dockerfile.centos7 has been updated from alpine:3.9 to alpine:3.17. This should provide a more up-to-date environment, but you should ensure that all dependencies are still compatible.

3. The apk add command in Dockerfile.centos7 has been updated. The package py-libxml2 has been removed. If this package is no longer needed, that's fine. But if it's still required, you'll need to add it back.

4. In entrypoint.sh, some lines have been added to modify /etc/libvirt/qemu.conf. This appears to be a workaround to run the libvirt daemon as root. Be aware that running services as root can pose security risks.

5. The --os-variant option in the virt-install command in entrypoint.sh has been updated from rhel7 to rhel7.6. This change should be fine as long as rhel7.6 is a valid variant.

6. The --disk option in the virt-install command in entrypoint.sh has been updated to include a size parameter. This change should be fine, but you should ensure that the size is correctly specified.

Overall, these changes seem reasonable, but you should thoroughly test everything to ensure that it all works as expected after these modifications.

[sshnaidm]

review is done!