validate that tested version matches the wp-env version

[circlecube]

Proposed changes

PRESS1-192

Not sure if there's a good way to also check the https://api.wordpress.org/core/stable-check/1.0/ endpoint to get the latest version and make sure we're current too.

Type of Change

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

Checklist

• I have read the CONTRIBUTING doc
• Linting and tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments

[wpscholar]

@circlecube If we set up Node and did an NPM install first, it would auto-update the .wp-env.json file with the latest WP version. Then, we could do these steps right after that to leverage that updated value.

[circlecube]

@wpscholar - Great point, I've moved this job to later in the workflow so the wp version should be at the latest.