Heatmap error, datasources, shorten filenames #1009

Job	Run time
Run pipeline with test data (23.04.0)	6m 11s
Test workflow parameters (test)	5m 34s
Run pipeline with test data (latest-everything)	6m 24s
Test workflow parameters (test_full)	5m 37s
Test workflow parameters (test_contrast_matrix)	3m 47s
Test workflow parameters (test_contrast_list)	4m 1s
Test workflow parameters (test_no_multiqc)	3m 38s
Test workflow parameters (test_relevel)	4m 50s
Test workflow parameters (test_smrnaseq)	3m 48s
Test workflow parameters (test_star_rsem)	14m 43s
Test workflow parameters (test_star_salmon)	8m 44s
Test workflow parameters (test_use_vst)	3m 48s
Test workflow parameters (test_batcheffect)	4m 9s
Test workflow parameters (test_custom_gmt)	4m 45s
	1h 19m 59s

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