Bug fix: update version of BWA-MEM in Hi-C workflow to avoid fatal index error

[jennaj]

Ref workflow: https://training.galaxyproject.org/training-material/topics/epigenetics/tutorials/hicexplorer/workflows/
Ref IDC feedback: galaxyproject/idc#53
Ref reported at https://help.galaxyproject.org/t/convert-galaxy-output-hic-file-to-hic-file-for-use-on-ucsc-genome-browser/12833/4

Workflow fails at BWA-MEM step when accessing dm3 index.

Workaround for end-users

1. Load the workflow into Galaxy
2. Open the workflow in the Editor
3. Update BWA-MEM to the latest tool version
4. Save, then execute

[jennaj]

Test at EU

• https://usegalaxy.eu/u/jenj/h/galaxy-hi-c-with-updated-bwa-mem
• https://usegalaxy.eu/u/jenj/w/galaxy-hi-c-with-updated-bwa-mem

Note: the hands-on could be updated for this, too (uses an older version of Bowtie)