yum does not work in OL9 containers

[Alex Pedcenko]

`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`

[Alex Pedcenko]

updated docker on CentOS 7 to newer ver, fine now.