1. Disable multisite CI tests - WordPress Multisite fundamentally
does not support custom ports (requires port 80/443). Tests can
only run locally where port 80 can be used.
2. Remove blueprint parameter from wp-performance-action - let the
action use its own internal setup to avoid port conflicts.
3. Fix single-site blueprint - use separate activatePlugin steps
instead of unsupported options.activate property in installPlugin.
marcusquinn
df7f303ffb