Recommend Cypress Docker images for Bitbucket CI

[MikeMcC399]

• closes Bitbucket CI example using node:latest fails #6048

Issue

The example Continuous Integration > Bitbucket Pipelines > Basic Setup fails to run since the Docker image node:latest does not provide the Linux prerequisites for Debian/Ubuntu.

Change

In Continuous Integration > Bitbucket Pipelines > Basic Setup remove the code example

1. Explain that using default Bitbucket / Atlassian images requires installing Linux prerequisites for Debian/Ubuntu.
2. Recommend instead using Cypress Docker images for a simpler experience.

[netlify]

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[cypress-app-bot]

• Create a Draft Pull Request if your PR is not ready for review. Mark the PR as Ready for Review when you're ready for a Cypress team member to review the PR.

[jennifer-shehane]

Thanks!