validate that wp versions match in release workflow

[circlecube]

Proposed changes

In the release workflow, we're adding a job to check the wp version against the tested version the plugin reports.

We want this to always be the latest version so users have confidence in updates.

This addresses PRESS1-192

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