Bump version 2.12.0dev #1488

Job	Run time
Choose nextflow versions to test against depending on target branch	1s
nf-test (latest-everything, test, docker)	29m 4s
nf-test (latest-everything, test_single, docker)	7m 10s
nf-test (latest-everything, test_fasta, docker)	5m 37s
nf-test (latest-everything, test_failed, docker)	18m 41s
nf-test (latest-everything, test_multi, docker)	11m 49s
nf-test (latest-everything, test_reftaxcustom, docker)	11m 48s
nf-test (latest-everything, test_qiimecustom, docker)	9m 10s
nf-test (latest-everything, test_doubleprimers, docker)	10m 49s
nf-test (latest-everything, test_iontorrent, docker)	9m 13s
nf-test (latest-everything, test_novaseq, docker)	6m 57s
nf-test (latest-everything, test_pacbio_its, docker)	10m 27s
nf-test (latest-everything, test_sintax, docker)	21m 27s
nf-test (latest-everything, test_pplace, docker)	20m 0s
nf-test (latest-everything, test_multiregion, docker)	20m 6s
	3h 12m 19s

Provide feedback