Issue description

The Asset Pipeline has been updated to support lazy gradle attributes & to minimize future changes when Grails is upgraded. We have a few more changes to finish this change in grails:

• release asset pipeline 5.0.12
• update the plugins to the new asset path
• update grails-forge to generate the new coordinates ✅
• update grails-spring-security to generate the new coordinates
• update documentation for upgrade gotchas