Sync from the puppetlabs-apt module for settings related to GitHub
actions support and other CI "deprecation".

We are interested in the list of all installed modules, we do not care
about messages on stderr like:
```
bash: warning: setlocale: LC_ALL: cannot change locale (fr_FR.UTF-8)
```

We need the contrib packages only with older versions of PostgreSQL.
While here include this class when it is needed instead of using
a resource to avoid conflicts when another module wants to do this.

PostgreSQL is configured to use snakeoil certificates, but PuppetDB
expect to use the Puppet certificates to authenticate with needs more
code that we currently have in the tests.

the provision module was not found in /home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/spec/fixtures/modules, please amend the .fixtures.yml file
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/puppet_litmus-0.34.3/lib/puppet_litmus/rake_helper.rb:121:in `provision'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/puppet_litmus-0.34.3/lib/puppet_litmus/rake_tasks.rb:81:in `block (2 levels) in <top (required)>'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/honeycomb-beeline-2.11.0/lib/honeycomb/integrations/rake.rb:21:in `block in execute'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/honeycomb-beeline-2.11.0/lib/honeycomb/client.rb:65:in `start_span'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/honeycomb-beeline-2.11.0/lib/honeycomb/integrations/rake.rb:16:in `execute'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/rake-13.0.6/exe/rake:27:in `<top (required)>'
/opt/hostedtoolcache/Ruby/2.7.6/x64/bin/bundle:23:in `load'
/opt/hostedtoolcache/Ruby/2.7.6/x64/bin/bundle:23:in `<main>'

puppet_agent was not found in /home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/spec/fixtures/modules, please amend the .fixtures.yml file
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/puppet_litmus-0.34.3/lib/puppet_litmus/rake_helper.rb:221:in `block in install_agent'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/honeycomb-beeline-2.11.0/lib/honeycomb/client.rb:65:in `start_span'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/forwardable-1.3.2/lib/forwardable.rb:238:in `start_span'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/puppet_litmus-0.34.3/lib/puppet_litmus/rake_helper.rb:210:in `install_agent'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/puppet_litmus-0.34.3/lib/puppet_litmus/rake_tasks.rb:126:in `block (2 levels) in <top (required)>'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/honeycomb-beeline-2.11.0/lib/honeycomb/integrations/rake.rb:21:in `block in execute'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/honeycomb-beeline-2.11.0/lib/honeycomb/client.rb:65:in `start_span'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/honeycomb-beeline-2.11.0/lib/honeycomb/integrations/rake.rb:16:in `execute'
/home/runner/work/puppetlabs-puppetdb/puppetlabs-puppetdb/vendor/bundle/ruby/2.7.0/gems/rake-13.0.6/exe/rake:27:in `<top (required)>'
/opt/hostedtoolcache/Ruby/2.7.6/x64/bin/bundle:23:in `load'
/opt/hostedtoolcache/Ruby/2.7.6/x64/bin/bundle:23:in `<main>'

Bolt::PAL::PALError: Could not find module facts containing task file bash.sh

Needed some minor adjustment to `.sync.yml`.

For now we want to have running CI.  We do not care about the module
being fully documented.

They break adding facts from a context.

This was changed in 68d8c64 to fix
puppet lint issues, but as the test suite was not run it passed through.

This was changed in 010bf13 to match
best practice, but as the test suite was not run it passed through.

The systemd module use this to run `systemctl daemon-reload`.  Set an
arbitrary value to avoid:

> Validation of Exec[systemd-postgresql.service-systemctl-daemon-reload] failed: 'systemctl' is not qualified and no path was specified. Please qualify the command or specify a path.

Ubuntu reached EOL a few years ago.  The module rely on modules that
drop support for this legacy version of Ubuntu e.g. the
puppetlabs-postgresql module removed support 6+ months ago.

Drop support for Ubuntu.