Add allergens in Food provider

[panilya]

No description provided.

[what-the-diff]

• Added a new method to the Food class called allergen()
• Updated food.yml with allergens data
• Tested that the newly added method works as expected by adding it to providerListTest().

[codecov-commenter]

Codecov Report

Merging #724 (a6f8f43) into main (2fb8051) will decrease coverage by 0.02%.
The diff coverage is 100.00%.

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@@             Coverage Diff              @@
##               main     #724      +/-   ##
============================================
- Coverage     92.91%   92.89%   -0.02%     
- Complexity     2580     2581       +1     
============================================
  Files           281      281              
  Lines          5109     5110       +1     
  Branches        528      528              
============================================
  Hits           4747     4747              
- Misses          234      235       +1     
  Partials        128      128              

Impacted Files	Coverage Δ
...c/main/java/net/datafaker/providers/food/Food.java	100.00% <100.00%> (ø)
.../java/net/datafaker/service/FakeValuesService.java	84.50% <0.00%> (-0.40%)	⬇️
...ain/java/net/datafaker/idnumbers/KoKrIdNumber.java	87.50% <0.00%> (+6.25%)	⬆️

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[snuyanzin]

in general lgtm
there is a nit comment

[kingthorin]

Thanks