Stop bundling `tests` folder in openscap-report package

[ggbecker]

Stop bundling tests folder in openscap-report, it conflicts with tests module from ComplianceAsCode/content.
If you install openscap-report and try to run automatus test, it might conflict because the automatus tests has a python package called tests, the same that is shipped with openscap-report.

You can see below when uninstalling the openscap-report is lists the a directory in the root of site-packages with the name tests

pip uninstall openscap-report
Found existing installation: openscap-report 1.0.0
Uninstalling openscap-report-1.0.0:
  Would remove:
	/home/vscode/.local/bin/oscap-report
	/home/vscode/.local/lib/python3.10/site-packages/openscap_report-1.0.0.dist-info/*
	/home/vscode/.local/lib/python3.10/site-packages/openscap_report/*
	/home/vscode/.local/lib/python3.10/site-packages/tests/*
Proceed (Y/n)?