restore support for EoL Ruby / Puppet 7; enable acceptance tests #224

Job	Run time
Puppet / Static validations	18s
Puppet / 8 (Ruby 3.2)	41s
Puppet / 7 (Ruby 2.7)	56s
Puppet / Puppet 8 - CentOS 7	1m 11s
Puppet / Puppet 7 - CentOS 7	2m 11s
Puppet / Puppet 8 - CentOS 8	1m 19s
Puppet / Puppet 7 - CentOS 8	1m 56s
Puppet / Puppet 8 - Rocky 8	1m 16s
Puppet / Puppet 7 - Rocky 8	1m 52s
Puppet / Puppet 8 - AlmaLinux 8	1m 1s
Puppet / Puppet 7 - AlmaLinux 8	1m 58s
Puppet / Puppet 8 - OracleLinux 7	1m 16s
Puppet / Puppet 7 - OracleLinux 7	2m 19s
Puppet / Puppet 8 - Ubuntu 18.04	1m 31s
Puppet / Puppet 7 - Ubuntu 18.04	1m 59s
Puppet / Distro Puppet - Archlinux rolling	1m 3s
Puppet / Test suite	0s
	22m 47s

Provide feedback