Upgrade swagger-ui assets to v5.27.1

[y-marion]

This fixes the issue described in #35 .

Additionally, this changes how the JS files are retrieved, as the main swagger ui repository does not contain pre-built files for releases after v5.24.0.

Adapted the documentation for this.

[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 SonarQube Cloud

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (7be4ca4) to head (49b0708).

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #36   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines          162       162           
=========================================
  Hits           162       162           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

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