Update assetPipelineVersion to v3.3.6 (#663)
Update assetPipelineVersion to v3.3.6 (#663)

Co-authored-by: Renovate Bot <c71e7261d37a4f6ae4cfb0cbd79081310a237e67@renovateapp.com>
grails-plugins/grails-spring-security-core,grails-plugins/grails-spring-security-core