* pdk test unit opn Puppet 8, 7 and 6

* Test pdk container for github actions

* Fixed Unknown variable: 'real_base_url'

* Lints

* Lints and undef fixes

* Lints. Remove unit tests on Puppet 6

* Adapt tp data for spec tests

* Disable param documentation check in puppet lint

* Disable param documentation check in puppet lint

* Lints and fixes

* Fixing tests

* unit tests