Fix typo in trainingOptions variable name

Author: zshs000

src/main/java/com/crowdin/client/ai/model/FineTuningJob.java

@@ -20,7 +20,7 @@ public static class JobAttribute {
         private Boolean dryRun;
         private Long aiPromptId;
         private Hyperparameters hyperparameters;
-        private Options trainignOptions;
+        private Options trainingOptions;
         private Options validationOptions;
         private String baseModel;
         private String fineTunedModel;