🐛 [REST API] Fix ServiceConfigurations to return KapuaIllegalArgument instead of 204

[MDeLuise]

Description

The ServiceConfigurations class methods (update, getComponent, updateComponent) currently return 204 or null when the following check is not true:

if (KapuaConfigurableService.class.isAssignableFrom(configurableServiceClass)) {
   ...
}

This behavior does not appropriately handle invalid user-provided values.

Solution

This pull request updates the methods in ServiceConfigurations to throw a KapuaIllegalArgument exception when appropiate.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 19 lines in your changes missing coverage. Please review.

Project coverage is 16.81%. Comparing base (2349705) to head (c090c8a).

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #4064      +/-   ##
=============================================
- Coverage      16.81%   16.81%   -0.01%     
  Complexity        22       22              
=============================================
  Files           2008     2008              
  Lines          52164    52167       +3     
  Branches        4398     4398              
=============================================
  Hits            8770     8770              
- Misses         42998    43001       +3     
  Partials         396      396              

Files	Coverage Δ
.../resources/v1/resources/ServiceConfigurations.java	0.00% <0.00%> (ø)