yum does not work in OL9 containers

`docker run -ti oraclelinux:9 [root@42f41dd1fda9 /]# dnf install mc Oracle Linux 9 BaseOS Latest (x86_64) 0.0 B/s | 0 B 00:00 Errors during downloading metadata for repository 'ol9_baseos_latest':

Curl error (6): Couldn't resolve host name for https://yum.oracle.com/repo/OracleLinux/OL9/baseos/latest/x86_64/repodata/repomd.xml [getaddrinfo() thread failed to start] Error: Failed to download metadata for repo 'ol9_baseos_latest': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried`

oracle / container-images

yum does not work in OL9 containers #57