Regression test for special chars in comments

[traylenator]

Pull Request (PR) description

Addition of test to trigger problem identified in #95

Without #95 this test fails with:

Failures:

  1) Puppet::Type::Sshd_config_match::ProviderAugeas with condition containing regex chars creates simple new entry
     Failure/Error: expect(againlogs).to eq([]), 'expected no change on second run (idempotence check)'
     
       expected no change on second run (idempotence check)
       Diff:
       @@ -1 +1 @@
       -[]
       +[#<Puppet::Util::Log:0x00007f2fced99f68 @level=:notice, @tags=#<Puppet::Util::TagSet: {"notice", "sshd_config_match"}>, @message="comment changed 'Host *: created by Puppet' to 'created by Puppet'", @source="/Sshd_config_match[Host *]/comment", @time=2024-08-06 09:17:08.781548196 +0200>]
       
     # ./spec/fixtures/modules/augeasproviders_core/spec/lib/augeas_spec/fixtures.rb:46:in `apply!'
     # ./spec/unit/puppet/provider/sshd_config_match/augeas_spec.rb:50:in `block (3 levels) in <top (required)>'

This Pull Request (PR) fixes the following issues

Fixes #95