Fix: Rename data provider

[localheinz]

This PR

• renames DataProvider\BooleanProvider to DataProvider\BoolProvider

Follows #326.

[codecov]

Codecov Report

Merging #334 into main will not change coverage.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##                main      #334   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        65        65           
===========================================
  Files              8         8           
  Lines            227       227           
===========================================
  Hits             227       227           

Impacted Files	Coverage Δ	Complexity Δ
src/DataProvider/BoolProvider.php	100.00% <100.00%> (ø)	4.00 <0.00> (?)

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