fix: Bug for additionalProperties: false

[Stranger6667]

Fixes #58

[codecov]

Codecov Report

Merging #61 into master will increase coverage by 0.44%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #61      +/-   ##
==========================================
+ Coverage   83.99%   84.44%   +0.44%     
==========================================
  Files          45       45              
  Lines        3137     3143       +6     
==========================================
+ Hits         2635     2654      +19     
+ Misses        502      489      -13     

Impacted Files	Coverage Δ
src/keywords/additional_properties.rs	86.29% <100.00%> (+0.40%)	⬆️
src/keywords/mod.rs	100.00% <100.00%> (ø)
src/compilation.rs	90.90% <0.00%> (+9.09%)	⬆️

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