Don't allow Java 11 to fail (#63)
Don't allow Java 11 to fail (#63)

Also update AdoptOpenJDK versions & cache them.
ignasi35/lagom,ignasi35/lagom,lagom/lagom,ignasi35/lagom,lagom/lagom,TimMoore/lagom,TimMoore/lagom,lagom/lagom,ignasi35/lagom,rcavalcanti/lagom,rcavalcanti/lagom,rcavalcanti/lagom,TimMoore/lagom,ignasi35/lagom,TimMoore/lagom,lagom/lagom,rcavalcanti/lagom,TimMoore/lagom,lagom/lagom