Remove public key requirement to decrypt #174

Job	Run time
rubocop	10s
Ruby 2.7 - Puppet ~> 7.24	1m 10s
Ruby 3.0 - Puppet ~> 7.24	1m 1s
Ruby 3.1 - Puppet ~> 8.0	1m 1s
Ruby 3.1 - Puppet ~> 7.24	57s
Ruby 3.1 - Puppet https://github.com/puppetlabs/puppet.git#main	1m 10s
Ruby 3.2 - Puppet ~> 8.0	1m 1s
Ruby 3.2 - Puppet ~> 7.24	55s
Ruby 3.2 - Puppet https://github.com/puppetlabs/puppet.git#main	1m 4s
Ruby jruby-9.4 - Puppet ~> 8.0	9m 45s
Ruby jruby-9.4 - Puppet ~> 7.24	9m 36s
Ruby jruby-9.4 - Puppet https://github.com/puppetlabs/puppet.git#main	9m 52s
Test suite	0s
	37m 42s

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