fix: deduplicate branches in the CLI list command

Artyom Kartasovrequested to merge
cli-deduplicate-branches into master

Description

If a pool contains multiple datasets, each has a "main" branch.

Therefore, the list command returns all these branches in the CLI. For example,

$ dblab branch
* main
* main

The MR removes duplicates and returns only unique branch names.

$ dblab branch
* main

Related issue

Examples

Checklist

  • MR description has been reviewed
  • MR changes are functionally tested
  • MR does NOT have API/CLI changes OR there are API/CLI changes and they have been reviewed & DOCS ARE ADJUSTED (reference doc, etc)
  • MR does NOT have UI changes OR there are UI changes and they have been reviewed & UX IS REVIEWED

Merge request reports