Removes centos7 and ol7 #331

Job	Run time
Check if docker files are compliant with templates	3s
Build package (oraclelinux,8, 11)	3m 27s
Build package (oraclelinux,8, 12)	11m 54s
Build package (oraclelinux,8, 13)	11m 54s
Build package (oraclelinux,8, 14)	11m 53s
Build package (oraclelinux,8, 15)	11m 53s
Build package (oraclelinux,8, 16)	11m 53s
Build package (oraclelinux,8, 17)	11m 52s
Build package (almalinux,8, 11)	2m 44s
Build package (almalinux,8, 12)	11m 19s
Build package (almalinux,8, 13)	11m 16s
Build package (almalinux,8, 14)	11m 17s
Build package (almalinux,8, 15)	10m 49s
Build package (almalinux,8, 16)	11m 46s
Build package (almalinux,8, 17)	11m 30s
Build package (almalinux,9, 11)	1m 59s
Build package (almalinux,9, 12)	10m 33s
Build package (almalinux,9, 13)	10m 4s
Build package (almalinux,9, 14)	10m 19s
Build package (almalinux,9, 15)	10m 46s
Build package (almalinux,9, 16)	10m 58s
Build package (almalinux,9, 17)	11m 55s
Build package (debian,bullseye)	11m 55s
Build package (debian,bookworm)	11m 55s
Build package (ubuntu,focal)	11m 52s
Build package (ubuntu,jammy)	11m 52s
Build package (pgxn)	51s
	4h 20m 29s

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