Protect JUnit logger against implementations without usesDataProvider()

[epdenouden]

Fixes #3441

[codecov]

Codecov Report

Merging #3446 into 7.5 will increase coverage by <.01%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##                7.5    #3446      +/-   ##
============================================
+ Coverage     83.41%   83.42%   +<.01%     
- Complexity     3618     3619       +1     
============================================
  Files           143      143              
  Lines          9632     9635       +3     
============================================
+ Hits           8035     8038       +3     
  Misses         1597     1597

Impacted Files	Coverage Δ	Complexity Δ
src/Util/Log/JUnit.php	94.44% <100%> (+0.11%)	35 <0> (+1)	⬆️

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