Speed-up CI tests
Speed-up CI tests

This commit limits integration tests only for changes on branches
'master' and 'testing' when JDK version > 8

heuermh/nextflow,nextflow-io/nextflow,robsyme/nextflow,robsyme/nextflow,heuermh/nextflow,heuermh/nextflow,nextflow-io/nextflow,nextflow-io/nextflow,robsyme/nextflow,nextflow-io/nextflow,heuermh/nextflow,robsyme/nextflow,heuermh/nextflow,robsyme/nextflow,nextflow-io/nextflow