Rework Docker prerequisites

[MikeMcC399]

Issue

The section Getting Started > Installing Cypress > System requirements > Linux prerequisites > Docker is outdated and only mentions cypress/base.

The use of Bun or Alpine Linux images isn't covered.

Change

On the page Getting Started > Installing Cypress

• Change the heading from "Docker" to "Docker Prerequisites"
• Rewrite the contents
• Refer to the operating systems section for supported OS Ubuntu, Fedora and Debian
• Address Alpine and Bun without explicitly mentioning them:
  • Stand-alone Alpine Linux is ruled out by referring to the supported OS list
  • Bun Docker images don't have Node.js installed (Bun is supposed to be a replacement for Node.js), so Node.js is explicitly listed to be added
  • Bun comes in a Debian variant and an Alpine variant. Alpine is ruled out (see above)

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