[Playground] Tag existing SCIO examples/katas/unit-tests in SCIO repository #21360
Description
As a Beam user, I want to see SCIO examples/katas/unit-tests from the SCIO repository in the Beam Playground examples' catalog.
Acceptance criteria:
- Beam SCIO examples/katas/unit-tests which can be executed on the Beam Playground are tagged
- Tagged Beam SCIO examples/katas/unit-tests are shown on the Beam Playground catalog
Imported from Jira BEAM-13552. Original Jira may contain additional context.
Reported by: Artur.Khanin.