feat: add playwright helm chart tests execution #752

[marcel-dias]

What was done

• feat: add playwright helm chart tests execution

see https://github.com/camunda/team-infrastructure-experience/issues/752

Details

This pull request introduces support for running Playwright-based Helm chart integration tests as part of the internal Camunda chart testing GitHub Action. It adds new inputs and workflow steps to enable, configure, and execute these tests, as well as to manage test artifacts. The documentation is updated to reflect these enhancements and provide guidance on the new options.

Playwright Helm Chart Integration Test Support:

• Added new inputs to .github/actions/internal-camunda-chart-tests/action.yml and documented them in the README to allow enabling Playwright integration tests, selecting authentication type, test project, exclusions, and artifact handling options. [1] [2] [3]
• Updated the action description and documentation to include Playwright integration tests as an optional third layer, with details on what is tested and how checks can be enabled/disabled. [1] [2]

Workflow Enhancements for Playwright Tests:

• Added steps to the composite action to verify prerequisites, cache dependencies, install Node.js modules and browsers, set up environment files (including fetching secrets from Kubernetes), run Playwright tests, and upload test artifacts on failure.

Local Testing Workflow Updates:

• Modified the local Kind cluster workflow (.github/workflows/local_kubernetes_kind_single_region_tests.yml) to pass required Playwright test inputs, enable Playwright smoke tests when TLS is enabled, and ensure the correct repo path and ref for test execution. [1] [2]

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[marcel-dias]

depends on https://github.com/camunda/c8-cross-component-e2e-tests/pull/1676