Pass version number to plugin.

[sainthkh]

• Closes Plugins need to know the Cypress version running #6352

User facing changelog

Pass version number to plugin for better handling breaking changes.

Additional details

• Why was this change necessary? Help users hand breaking changes.
• What is affected by this change? N/A
• Any implementation details to explain? N/A

How has the user experience changed?

N/A

PR Tasks

• Have tests been added/updated?
• Has the original issue been tagged with a release in ZenHub?
• Has a PR for user-facing changes been opened in cypress-documentation? The explanation about the version number property in config of the plugin cypress-documentation#3009
• Have API changes been updated in the type definitions?
• [N/A] Have new configuration options been added to the cypress.schema.json?

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[sainthkh]

Flaky failures + Github server errors.

[chrisbreiding]

Looks good. Just the one change to make. The documentation can go here, in the note concerning the projectRoot and configFile properties.

[sainthkh]

Flaky test.