fix(fern/apis/api/openapi.json): add 'deepseek-reasoner' to enum list and fix line indentation

Author: fern-api[bot]

fern/apis/api/openapi.json

@@ -6235,7 +6235,8 @@
             "type": "string",
             "description": "This is the name of the model. Ex. cognitivecomputations/dolphin-mixtral-8x7b",
             "enum": [
-              "deepseek-chat"
+              "deepseek-chat",
+              "deepseek-reasoner"
             ]
           },
           "provider": {