Tests for utils.py updated

.gitlab-ci.yml

PanACoTA/utils.py

test/data/annotate/exp_files/baseline/test_plot_dist.png

test/data/annotate/exp_files/res_H299_H561-ESCO00005.fna

test/data/annotate/exp_files/res_test_write_discard.lst

...ata/annotate/exp_files/res_test_write_discard_1genome.lst

test/data/annotate/exp_files/res_test_write_info_qc.lst

test/data/annotate/exp_files/res_test_write_lstinfo.lst

test/data/annotate/test_files/list_genomes-multi-files.txt

test/data/annotate/test_files/lstinfo-miss-1genome.lst

test/data/annotate/test_files/lstinfo-no-genome.lst

test/data/annotate/test_files/lstinfo-no-header.lst

test/data/annotate/test_files/lstinfo-not-all-filled.lst

test/data/annotate/test_files/lstinfo-not-int-nbcont.lst

test/data/annotate/test_files/lstinfo-wrong-header.lst

test/data/annotate/test_files/lstinfo.lst

test/test_unit/test_utils.py