centos-7 is EOL

Consider to remove the centos-7 related support in place like distro/adaption.

https://learn.microsoft.com/en-us/azure/virtual-machines/workloads/centos/centos-end-of-life
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CentOS 7 and 8 are the final releases of CentOS Linux. The end-of-life dates for CentOS 7 and 8 were:

CentOS 8 - December 31, 2021
CentOS 7 - June 30, 2024
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