SCXA pipelines update/upgrade

[pmb59]

After few years of successful run, some upgrades can be done for workflow modernisation:

In order of priority:

1. Bring tertiary analysis to Nextflow, for a unified workflow
   1.1 New repo: scxa-tertiary-workflow
   1.2 adding w_tertiary to scxa-workflows repo
2. Moving to DSL2 (DSL1 not working on Nextflow versions >= 22.12.0)
   2.1 Remove dependencies to channel anaconda
   2.2 Migrate main.nf
3. Integration with with Seqera Platform (Nextflow tower):
   3.1 to track, monitor and get detailed information regarding the execution of the pipelines
   3.2 to generate reports
4. Tool update, update to best practices.

Notes:

• Updating documentation, e.g. in scxa-workflows

[pmb59]

Point 1 being addressed here