test: update cypress in examples to 13.15.1

[MikeMcC399]

Issue

examples/basic is configured with cypress@13.11.0.

cypress@13.13.0 is the minimum version compatible with Firefox 129 and above. Lower versions of Cypress fail to connect to Firefox. Using the pre-configured Cypress project in examples/basic will therefore fail with current versions of Firefox.

Change

For consistency across examples, update each of the following directories to cypress@latest (cypress@13.15.1):

• examples/basic
• examples/chromium
• examples/firefox-esr

Verification

cd examples/basic         # Use a pre-configured simple Cypress E2E project
npm ci                    # Install Cypress
docker build . -f Dockerfile.browsers -t test-browsers  # Build a new image
docker run -it --rm --entrypoint bash test-browsers -c "npx cypress run -b firefox" # Run Cypress test in container using Firefox

Cypress should run successfully using cypress@13.15.1 and Firefox 131.

[cypress-app-bot]

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