cloudv2: s/ReferenceID/TestRunID/

[codebien]

I've renamed most of the referenceID occurrences to testRunID. It should now be more consistent with the business domain.

I wonder why we had it before so if someone can recall, it would be great. I avoid renaming the v1 internal occurrences as we plan to drop the entire v1 soon.

[codecov-commenter]

Codecov Report

Merging #3137 (9d7218b) into master (aa79387) will decrease coverage by 0.02%.
The diff coverage is 85.00%.

❗ Current head 9d7218b differs from pull request most recent head a6f5a77. Consider uploading reports for the commit a6f5a77 to get more accurate results

@@            Coverage Diff             @@
##           master    #3137      +/-   ##
==========================================
- Coverage   72.78%   72.77%   -0.02%     
==========================================
  Files         255      255              
  Lines       19585    19585              
==========================================
- Hits        14255    14253       -2     
- Misses       4433     4435       +2     
  Partials      897      897              

Flag	Coverage Δ
ubuntu	72.70% <85.00%> (-0.03%)	⬇️
windows	72.63% <85.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
cloudapi/config.go	90.65% <ø> (ø)
output/cloud/v1/output.go	67.81% <ø> (ø)
output/cloud/expv2/output.go	66.01% <75.00%> (ø)
output/cloud/output.go	75.33% <85.71%> (ø)
output/cloud/expv2/flush.go	86.95% <100.00%> (ø)

... and 1 file with indirect coverage changes

[yorugac]

👋 Just in case it's useful: recently it was noticed that the endpoints used by cloudapi v1 are actually an exception in the API and not the norm. Issue on topic: https://github.com/grafana/k6-cloud/issues/1469 Note: the term "reference ID" is also mentioned there.

[imiric]

I think "reference ID" is a remnant of how this was referred to by the backend, as @yorugac mentions, and not something that we came up with in k6.

I'm fine with this change, though we should add a comment somewhere that this field is known as "reference ID" in the backend, or if that's now being phased out, that it was the legacy name for v1.

[olegbespalov]

🚀