[CLOUD-737] Make Hopsworks 3.8.0 the default deployable version

[kouzant]

Make sure there is no duplicate PR for this issue

https://hopsworks.atlassian.net/browse/CLOUD-737

• Please check if the PR meets the following requirements

  • Adds tests for the submitted changes (for bug fixes & features)
  • Passes the tests including acceptance test
  • An issue has been opened for this PR
  • Updates the change log
  • All commits have been squashed down to a single commit

• Close the associated issue

  Closes #0000

  Relates #0000

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.45%. Comparing base (804b35d) to head (b77a392).
Report is 14 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #321      +/-   ##
==========================================
+ Coverage   91.87%   93.45%   +1.57%     
==========================================
  Files          24       24              
  Lines        3741     3268     -473     
==========================================
- Hits         3437     3054     -383     
+ Misses        224      134      -90     
  Partials       80       80              

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