Configure the settings file path to be relative to the current working directory

Author: MaggieKimani1

src/Microsoft.OpenApi.Hidi/Utilities/SettingsUtilities.cs

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license.
 
+using System.IO;
 using Microsoft.Extensions.Configuration;
 using Microsoft.OpenApi.OData;
 
@@ -11,15 +12,19 @@ internal static class SettingsUtilities
         internal static IConfiguration GetConfiguration(string? settingsFile = null)
         {
             if (string.IsNullOrEmpty(settingsFile))
+            {
                 settingsFile = "appsettings.json";
+            }
+
+            var settingsFilePath = Path.Combine(Directory.GetCurrentDirectory(), settingsFile);
 
             IConfiguration config = new ConfigurationBuilder()
-            .AddJsonFile(settingsFile, true)
-            .Build();
+                .AddJsonFile(settingsFilePath, true)
+                .Build();
 
             return config;
         }
-
+        
         internal static OpenApiConvertSettings GetOpenApiConvertSettings(IConfiguration config, string? metadataVersion)
         {
             if (config == null) { throw new System.ArgumentNullException(nameof(config)); }