Fix code factor warnings

Author: KoditkarVedant

Src/Notion.Client/Api/Authentication/RefreshToken/AuthenticationClient.cs

@@ -36,5 +36,4 @@ public async Task<RefreshTokenResponse> RefreshTokenAsync(
             return response;
         }
     }
-
-}
+}

Src/Notion.Client/Api/Authentication/RefreshToken/Request/IRefreshTokenBodyParameters.cs

@@ -16,5 +16,4 @@ public interface IRefreshTokenBodyParameters
         [JsonProperty("refresh_token")]
         string RefreshToken { get; set; }
     }
-
 }

Src/Notion.Client/Api/Authentication/RefreshToken/Request/RefreshTokenRequest.cs

@@ -10,5 +10,4 @@ public class RefreshTokenRequest : IRefreshTokenBodyParameters, IBasicAuthentica
 
         public string ClientSecret { get; set; }
     }
-
 }

Src/Notion.Client/Api/Authentication/RefreshToken/Response/RefreshTokenResponse.cs

@@ -51,6 +51,5 @@ public class RefreshTokenResponse
         /// </summary>
         [JsonProperty("workspace_id")]
         public string WorkspaceId { get; set; }
-
     }
 }