[backend] Fix param to retrieve asset groups from a raw map

[savacano28]

Proposed changes

Related issues

• Closes #ISSUE-NUMBER

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 33.53%. Comparing base (566e6c8) to head (9d32dd4).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...main/java/io/openbas/utils/AtomicTestingUtils.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1710   +/-   ##
=========================================
  Coverage     33.53%   33.53%           
  Complexity     1608     1608           
=========================================
  Files           557      557           
  Lines         14476    14476           
  Branches        871      871           
=========================================
  Hits           4854     4854           
  Misses         9397     9397           
  Partials        225      225           

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