Fix Spring 6 incompatibility

[leonard84]

fixes #1417

[codecov]

Codecov Report

Merging #1428 (6384d78) into master (4d5c0de) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #1428      +/-   ##
============================================
+ Coverage     79.50%   79.52%   +0.01%     
- Complexity     3998     4005       +7     
============================================
  Files           403      404       +1     
  Lines         12537    12546       +9     
  Branches       1640     1641       +1     
============================================
+ Hits           9968     9977       +9     
  Misses         1974     1974              
  Partials        595      595              

Impacted Files	Coverage Δ
...kframework/spring/mock/SpockMockPostprocessor.java	85.03% <ø> (ø)
...bleInstantiationAwareBeanPostProcessorAdapter.java	100.00% <100.00%> (ø)

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