Add Puppet 8 support #75

Job	Run time
Puppet / Static validations	23s
Puppet / 8 (Ruby 3.2)	24s
Puppet / 7 (Ruby 2.7)	44s
Puppet / Distro Puppet - Archlinux rolling	3m 34s
Puppet / Puppet 8 - CentOS 7	1m 37s
Puppet / Puppet 7 - CentOS 7	1m 31s
Puppet / Puppet 8 - CentOS 8	1m 51s
Puppet / Puppet 7 - CentOS 8	1m 50s
Puppet / Puppet 8 - CentOS 9	1m 42s
Puppet / Puppet 7 - CentOS 9	1m 50s
Puppet / Puppet 8 - Debian 10	1m 57s
Puppet / Puppet 7 - Debian 10	1m 48s
Puppet / Puppet 8 - Debian 11	2m 1s
Puppet / Puppet 7 - Debian 11	1m 43s
Puppet / Distro Puppet - Debian 12	1m 53s
Puppet / Puppet 8 - Ubuntu 18.04	1m 48s
Puppet / Puppet 7 - Ubuntu 18.04	1m 47s
Puppet / Puppet 8 - Ubuntu 20.04	3m 38s
Puppet / Puppet 7 - Ubuntu 20.04	1m 43s
Puppet / Puppet 8 - Ubuntu 22.04	1m 47s
Puppet / Puppet 7 - Ubuntu 22.04	1m 59s
Puppet / Test suite	1s
	37m 31s

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