No longer any need to pin to an outdated edge version of Nextflow.

[robsyme]

At present, the Dockerfile sets the NXF_VER and NXF_EDGE environment variables, which causes ugly message

Nextflow 24.09.2-edge is available - Please consider updating your version to it

For all runs. Unpinning these versions (and rebuilding the container) would remove these warnings.

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[pinin4fjords]

We want to pin to a version though, right? Otherwise output could change wrt examples? The older docs even had a bit telling users to do the pinning as I recall, for that reason.

[robsyme]

Do you mean output like:

 N E X T F L O W   ~  version 24.02.0-edge

 ┃ Launching `hello-genomics.nf` [special_goldstine] DSL2 - revision: 4cbbf6ea3e

executor >  local (6)
[d6/10c2c4] SAMTOOLS_INDEX (1)       | 3 of 3 ✔
[88/1783aa] GATK_HAPLOTYPECALLER (2) | 3 of 3 ✔

I would doubt that anybody would be too confused, but I'm happy to comprimise. I'm happy to pin, but would prefer that we pin to a stable release.

[robsyme]

Closing in favor of #463

[pinin4fjords]

I mostly mean that we don't know how future versions of Nextflow might tweak the output