[tests] Allow tests to restrict OS version

[jcastill]

Add a new versions class attribute that allows test classes to specify which version(s) are allowed/designed to execute on. If the test is attempted to be executed on a version that's not specified, the test will be skipped and a message will be printed.

By default, the list of versions will be empty, which means that the test should run in all versions of the OS.

This patch contains a change to restrict the execution of Teamd to RHEL 8, because it was deprecated for RHEL 9 and later.

---

Please place an 'X' inside each '[]' to confirm you adhere to our Contributor Guidelines

• [X] Is the commit message split over multiple lines and hard-wrapped at 72 characters?
• [X] Is the subject and message clear and concise?
• [X] Does the subject start with [plugin_name] if submitting a plugin patch or a [section_name] if part of the core sosreport code?
• [X] Does the commit contain a Signed-off-by: First Lastname email@example.com?
• [X] Are any related Issues or existing PRs properly referenced via a Closes (Issue) or Resolved (PR) line?
• [X] Are all passwords or private data gathered by this PR obfuscated?

[jcastill]

Result of running this PR against a RHEL 9 where teamd is deprecated:

 (19/55) tests/report_tests/plugin_tests/teamd.py:TeamdPluginTest.test_teamd_plugin_executed: STARTED
 (19/55) tests/report_tests/plugin_tests/teamd.py:TeamdPluginTest.test_teamd_plugin_executed: SKIP: Unsupported OS version 9 (supports: ['8'])
 (20/55) tests/report_tests/plugin_tests/teamd.py:TeamdPluginTest.test_team_dev_iteration: STARTED
 (20/55) tests/report_tests/plugin_tests/teamd.py:TeamdPluginTest.test_team_dev_iteration: SKIP: Unsupported OS version 9 (supports: ['8'])
 (21/55) tests/report_tests/plugin_tests/teamd.py:TeamdPluginTest.test_archive_created: STARTED
 (21/55) tests/report_tests/plugin_tests/teamd.py:TeamdPluginTest.test_archive_created: SKIP: Unsupported OS version 9 (supports: ['8'])

Does this look ok?

[packit-as-a-service[bot]]

Congratulations! One of the builds has completed. :champagne:

You can install the built RPMs by following these steps:

• sudo yum install -y dnf-plugins-core on RHEL 8
• sudo dnf install -y dnf-plugins-core on Fedora
• dnf copr enable packit/sosreport-sos-3782
• And now you can install the packages.

Please note that the RPMs should be used only in a testing environment.