[MA-1666][slo correction]update required fields in create and update requests

[api-clients-generation-pipeline]

See DataDog/datadog-api-spec#772

[codecov-io]

Codecov Report

Merging #171 (9ec66bd) into master (06e2aa2) will decrease coverage by 0.87%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #171      +/-   ##
==========================================
- Coverage   39.09%   38.22%   -0.88%     
==========================================
  Files         778      778              
  Lines       67187    68317    +1130     
==========================================
- Hits        26270    26111     -159     
- Misses      40917    42206    +1289     

Impacted Files	Coverage Δ
...models/slo_correction_create_request_attributes.rb	29.66% <ø> (+0.24%)	⬆️
...nt/v1/models/slo_correction_response_attributes.rb	33.94% <ø> (-0.64%)	⬇️
...models/slo_correction_update_request_attributes.rb	32.03% <ø> (+2.83%)	⬆️
...ib/datadog_api_client/v2/api/key_management_api.rb	8.69% <0.00%> (-63.59%)	⬇️
lib/datadog_api_client/v2/models/api_keys_type.rb	63.63% <0.00%> (-36.37%)	⬇️
...adog_api_client/v2/models/application_keys_type.rb	63.63% <0.00%> (-36.37%)	⬇️
...2/models/application_key_response_included_item.rb	26.19% <0.00%> (-32.35%)	⬇️
...g_api_client/v2/models/application_key_response.rb	28.42% <0.00%> (-17.82%)	⬇️
...b/datadog_api_client/v2/models/api_key_response.rb	28.42% <0.00%> (-16.75%)	⬇️
...og_api_client/v2/models/partial_application_key.rb	31.68% <0.00%> (-15.80%)	⬇️
... and 574 more

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