fix: allow enum int values

[simPod]

No description provided.

[codecov]

Codecov Report

Merging #127 (2b1ed8f) into 0.5.x (77dfaae) will increase coverage by 0.06%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##              0.5.x     #127      +/-   ##
============================================
+ Coverage     97.40%   97.47%   +0.06%     
  Complexity       72       72              
============================================
  Files            11       11              
  Lines           193      198       +5     
============================================
+ Hits            188      193       +5     
  Misses            5        5              

Impacted Files	Coverage Δ
src/Builder/EnumBuilder.php	100.00% <100.00%> (ø)
src/Builder/TypeBuilder.php	100.00% <0.00%> (ø)
src/Builder/FieldBuilder.php	100.00% <0.00%> (ø)
src/Builder/InputFieldBuilder.php	100.00% <0.00%> (ø)
src/Type/DateTimeType.php	97.77% <0.00%> (+0.05%)	⬆️
src/Exception/InvalidArgument.php	66.66% <0.00%> (+3.03%)	⬆️

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