🐛 [Core] Fixed handling of null KapuaSession on prePersist and preUpdate operation in KapuaEntity

[Coduz]

Fixed handling of KapuaSession when null

Related Issue
None

Description of the solution adopted
Added a null check

Screenshots
None

Any side note on the changes made
None

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 16.70%. Comparing base (88f427b) to head (425f96b).

Files with missing lines	Patch %	Lines
...lipse/kapua/commons/model/AbstractKapuaEntity.java	50.00%	0 Missing and 1 partial ⚠️
...ua/commons/model/AbstractKapuaUpdatableEntity.java	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #4176      +/-   ##
=============================================
- Coverage      16.70%   16.70%   -0.01%     
  Complexity        22       22              
=============================================
  Files           2039     2039              
  Lines          53024    53026       +2     
  Branches        4453     4454       +1     
=============================================
  Hits            8860     8860              
  Misses         43761    43761              
- Partials         403      405       +2     

Files with missing lines	Coverage Δ
...lipse/kapua/commons/model/AbstractKapuaEntity.java	96.42% <50.00%> (-3.58%)	⬇️
...ua/commons/model/AbstractKapuaUpdatableEntity.java	79.54% <50.00%> (-1.85%)	⬇️