Containerd in e2e image was using native one in ubuntu, it should be updated to the latest release.
And add proxy cache py-tests including pull image/manifest list by docker and ctr CLI.
Signed-off-by: danfengliu <danfengl@vmware.com>
1. Upgrade robot-framework to 3.1 and Selenium library to 4.4.0.
2. Fix a registry issue for clear filter text input.
Signed-off-by: danfengliu <danfengl@vmware.com>
1. Manifest list can be pulled by ctr;
2. ui-test missing key checkpoint, fix it by add checking scan detail result;
3. add tag retension untag image test;
Signed-off-by: danfengliu <danfengl@vmware.com>
