List all users as superadmin

[i-oden]

Description

List all users as super admin, and find users if they exist.

• Summary of the changes and the related issue
• Relevant motivation and context
• Any dependencies that are required for this change

Fixes # (issue)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

Please delete options that are not relevant.

• Any dependent changes have been merged and published in downstream modules
• Rebase/merge the branch which this PR is made to
• Product Owner / Scrum Master: This PR is made to the master branch and I have updated the version

Formatting and documentation

• I have added a row in the changelog
• The code follows the style guidelines of this project: Black / Prettier formatting
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

Tests

• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[codecov]

Codecov Report

Merging #504 (5692424) into dev (1743bdb) will increase coverage by 30.13%.
The diff coverage is 35.71%.

@@             Coverage Diff             @@
##              dev     #504       +/-   ##
===========================================
+ Coverage   11.27%   41.40%   +30.13%     
===========================================
  Files          29       29               
  Lines        2502     2526       +24     
===========================================
+ Hits          282     1046      +764     
+ Misses       2220     1480      -740     

Impacted Files	Coverage Δ
dds_cli/utils.py	100.00% <ø> (+0.55%)	⬆️
dds_cli/account_manager.py	33.33% <26.66%> (+33.33%)	⬆️
dds_cli/__main__.py	41.12% <36.36%> (+41.12%)	⬆️
dds_cli/__init__.py	91.78% <100.00%> (+0.11%)	⬆️
dds_cli/data_lister.py	13.61% <0.00%> (+13.61%)	⬆️
dds_cli/user.py	19.18% <0.00%> (+19.18%)	⬆️
dds_cli/data_putter.py	22.79% <0.00%> (+22.79%)	⬆️
dds_cli/file_handler_local.py	23.36% <0.00%> (+23.36%)	⬆️
dds_cli/file_handler_remote.py	26.00% <0.00%> (+26.00%)	⬆️
... and 20 more

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[valyo]

works fine