Updating tools/datamash from version 1.1.0 to 1.8

[planemo-autoupdate]

Hello! This is an automated update of the following tool: tools/datamash. I created this PR because I think the tool's main dependency is out of date, i.e. there is a newer version available through conda.

I have updated tools/datamash from version 1.1.0 to 1.7.

Project home page: https://www.gnu.org/software/datamash

[bernt-matthias]

Changelog is here https://git.savannah.gnu.org/gitweb/?p=datamash.git;a=blob_plain;f=NEWS;hb=HEAD

[wm75]

Puh, quite useful new functionality, but needs some time to incorporate it all.

[wm75]

Thanks for making the wrapper autoupdate-compatible @bernt-matthias :)

[bgruening]

This is a very good opportunity for a first-time contributor.