🔨📝 Misc improvements in tooling and doc

[pcrespov]

What do these changes do?

Miscellaneous of small changes/fixes:

• improve registry tests
• 🔨 renamed and doc recipe to download registry test-data
• 📝 highlights host name in email
• 🐛🔨 Fixes computational-cluster CLI unhandled exception

Related issue/s

• improving registries after failure checks with @mguidon
• minor fixes while using scripts/maintenance/computational-clusters CLI

Dev-ops checklist

None

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.9%. Comparing base (cafbf96) to head (682c3c1).
Report is 607 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #6478      +/-   ##
=========================================
+ Coverage    84.5%   84.9%    +0.3%     
=========================================
  Files          10     606     +596     
  Lines         214   22665   +22451     
  Branches       25     899     +874     
=========================================
+ Hits          181   19252   +19071     
- Misses         23    3284    +3261     
- Partials       10     129     +119     

Flag	Coverage Δ
unittests	84.9% <ø> (+0.3%)	⬆️

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

see 571 files with indirect coverage changes

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud