Add option for dumping run output in more formats than just the default JSON (YAML & plain-text)

[robnewman]

Currently, I can run

$ tw runs dump -i <run-id> -w <org-id/wksp-id> -o file.tar.gz 

and I get a very nice gzipped tarball of the run logs. However, these are only available in JSON format (contents of the unzipped tarball pasted below):

$ ls -la file
total 2280
drwx------@ 10 robnewman  staff   320B Sep  4 13:42 .
drwxr-xr-x  38 robnewman  staff   1.2K Sep  4 13:42 ..
-rw-r--r--@  1 robnewman  staff   422K Sep  4 13:41 nextflow.log
-rw-r--r--@  1 robnewman  staff   1.3K Sep  4 13:41 service-info.json
-rw-r--r--@  1 robnewman  staff   3.1K Sep  4 13:41 workflow-launch.json
-rw-r--r--   1 robnewman  staff   672B Sep  4 13:41 workflow-load.json
-rw-r--r--   1 robnewman  staff   808B Sep  4 13:41 workflow-metadata.json
-rw-r--r--   1 robnewman  staff   224K Sep  4 13:41 workflow-metrics.json
-rw-r--r--   1 robnewman  staff   368K Sep  4 13:41 workflow-tasks.json
-rw-r--r--   1 robnewman  staff    99K Sep  4 13:41 workflow.json

It would be useful to specify an arg (e.g. -f yaml|json|txt for formatting the output. Currently I don't see anything available when executing tw runs dump -h.

I know I can download YAML formatted parameters from the Seqera Platform run details page, but apparently that's just a client-side on-demand conversion. It would be helpful to add support for multiple dump formats.