Adding spring boot 4.0.2 tests to the matrix

[salaboy]

Description

Adding Spring Boot 4.0.2 to the matrix to run all tests against this version.
Removing Spring Boot 3.4.x

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #[issue number]

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.99%. Comparing base (528451f) to head (6a73359).

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1638   +/-   ##
=========================================
  Coverage     78.99%   78.99%           
  Complexity     2096     2096           
=========================================
  Files           228      228           
  Lines          6322     6322           
  Branches        693      693           
=========================================
  Hits           4994     4994           
  Misses          976      976           
  Partials        352      352           

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