[backend] fix null pointer exc

[savacano28]

Proposed changes

Related issues

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 4 lines in your changes missing coverage. Please review.

Project coverage is 26.66%. Comparing base (0b9ca6a) to head (6068797).

Files	Patch %	Lines
...rc/main/java/io/openbas/service/InjectService.java	0.00%	4 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1144      +/-   ##
============================================
- Coverage     26.67%   26.66%   -0.01%     
  Complexity     1067     1067              
============================================
  Files           474      474              
  Lines         11323    11325       +2     
  Branches        579      579              
============================================
  Hits           3020     3020              
- Misses         8219     8221       +2     
  Partials         84       84              

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[Dimfacion]

LGTM :)

Nitpick : The name of your branch does not match what is described in the internal docs.
Does the naming described here not fit your need ?