Add `env()` function (#5506) #20

Job	Run time
dependency-submission (nextflow)	52s
dependency-submission (plugins:nf-google)	56s
dependency-submission (plugins:nf-amazon)	35s
dependency-submission (plugins:nf-azure)	50s
dependency-submission (plugins:nf-cloudcache)	37s
dependency-submission (plugins:nf-codecommit)	44s
dependency-submission (plugins:nf-console)	27s
dependency-submission (plugins:nf-tower)	43s
dependency-submission (plugins:nf-wave)	48s
	6m 32s

Provide feedback