Release 5.0.0

[bastelfreak]

I would like to include https://github.com/voxpupuli/rspec-puppet-facts/pull/189 as well

[bastelfreak]

• I raised https://github.com/voxpupuli/rspec-puppet-facts/pull/193 which updates the README.md and deprecates symbolized facts
• I updated the release notes for 3.0.0 (https://github.com/voxpupuli/rspec-puppet-facts/issues/170), say mentioned that symbolized keys are deprecated with the 5.0.0 release
• I moved https://github.com/voxpupuli/rspec-puppet-facts/issues/190 to the release summary for 6.0.0
• I don't think that we need another release summary for 5.0.0. But if someone has a different opinion we can add it.
• I communicated the change to the CAT/DevX team

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 95.06%. Comparing base (50cff16) to head (60e902c). Report is 12 commits behind head on master.

:exclamation: Current head 60e902c differs from pull request most recent head a0ac683

Please upload reports for the commit a0ac683 to get more accurate results.

Files	Patch %	Lines
lib/rspec-puppet-facts/version.rb	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #188 +/- ## ========================================== + Coverage 94.93% 95.06% +0.12% ========================================== Files 2 2 Lines 158 162 +4 ========================================== + Hits 150 154 +4 Misses 8 8 ```

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