drop support for EL7 #249

Job	Run time
Puppet / Static validations	33s
Puppet / 8 (Ruby 3.2)	49s
Puppet / 7 (Ruby 2.7)	1m 15s
Puppet / Puppet 8 - Rocky 8	1m 26s
Puppet / Puppet 7 - Rocky 8	1m 53s
Puppet / Puppet 8 - Rocky 9	1m 18s
Puppet / Puppet 7 - Rocky 9	1m 53s
Puppet / Puppet 8 - AlmaLinux 8	1m 39s
Puppet / Puppet 7 - AlmaLinux 8	1m 51s
Puppet / Puppet 8 - AlmaLinux 9	1m 19s
Puppet / Puppet 7 - AlmaLinux 9	1m 53s
Puppet / Puppet 8 - OracleLinux 8	1m 51s
Puppet / Puppet 7 - OracleLinux 8	2m 33s
Puppet / Puppet 8 - OracleLinux 9	1m 34s
Puppet / Puppet 7 - OracleLinux 9	2m 4s
Puppet / Puppet 8 - Ubuntu 20.04	1m 43s
Puppet / Puppet 7 - Ubuntu 20.04	2m 24s
Puppet / Puppet 8 - Ubuntu 22.04	1m 46s
Puppet / Puppet 7 - Ubuntu 22.04	2m 20s
Puppet / Distro Puppet - Archlinux rolling	2m 11s
Puppet / Test suite	1s
	34m 16s

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