test: use Docker image cypress/browsers in parallel record example

[MikeMcC399]

• closes Prepare for Electron deprecation in Cypress Cloud parallel recording #1772

Situation

Cypress 16.0.0 deprecates the built-in Electron browser.

As described in #1727 and in the README documentation Parallel section, parallel recording into Cypress Cloud using browsers provided by GitHub Actions runners can cause version mismatch errors during runner deployments that may span several days.

The advice has been to use a Cypress Docker image to ensure consistent versions across parallel runs.

Note that this is only applicable to Ubuntu runner images. Docker containers cannot run under macOS or Windows on GitHub Actions.

Change

Update Cypress Cloud recording examples to use the cypress/browsers Docker image.

Rename the strategy: matrix parameter from container to recording-job to avoid confusion with the Docker container.

• README > Parallel
• .github/workflows/example-recording.yml

---

Note

Low Risk
Documentation and example CI workflow only; no changes to the action runtime or user-facing behavior beyond recommended patterns.

Overview
Updates parallel Cypress Cloud recording guidance and the example-recording workflow so matrix jobs run inside cypress/browsers (pinned 24.20.0 in the live example, latest in the README snippet) with --user 1001, keeping browser versions aligned across parallel runners during GitHub-hosted image rollouts.

Renames the matrix axis from containers to recording-job to distinguish GitHub Actions matrix copies from the job’s Docker container block. The Parallel README section is reworded around “jobs” instead of “containers,” expands Ubuntu Docker guidance, and discourages parallel recording on macOS/Windows where the mismatch workaround does not apply; adds a link to the recording example workflow badge.

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[MikeMcC399]

Preview

• https://github.com/MikeMcC399/github-action/tree/record-with-docker#parallel