fix(api): fix nullability of logprobs

Makes ResponseOutputText.logprobs nullable, matching with 2.6.1. While this is always present in the server response, this inadvertently affected params and some constructors

Author: stainless-app[bot]

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 135
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-3c5d1593d7c6f2b38a7d78d7906041465ee9d6e9022f0651e1da194654488108.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-eeba8addf3a5f412e5ce8d22031e60c61650cee3f5d9e587a2533f6818a249ea.yml
 openapi_spec_hash: 0a4d8ad2469823ce24a3fd94f23f1c2b
-config_hash: 032995825500a503a76da119f5354905
+config_hash: 0bb1941a78ece0b610a2fbba7d74a84c

src/resources/responses/responses.ts

@@ -3870,8 +3870,6 @@ export interface ResponseOutputText {
     | ResponseOutputText.FilePath
   >;
 
-  logprobs: Array<ResponseOutputText.Logprob>;
-
   /**
    * The text output from the model.
    */
@@ -3881,6 +3879,8 @@ export interface ResponseOutputText {
    * The type of the output text. Always `output_text`.
    */
   type: 'output_text';
+
+  logprobs?: Array<ResponseOutputText.Logprob>;
 }
 
 export namespace ResponseOutputText {