Get the display name from the enum

Author: MaggieKimani1

src/Microsoft.OpenApi.Readers/V3/OpenApiSecuritySchemeDeserializer.cs

@@ -44,13 +44,13 @@ internal static partial class OpenApiV3Deserializer
                 {
                     "scheme", (o, n) =>
                     {
-                        o.Scheme = n.GetScalarValue();
+                        o.Scheme = n.GetScalarValue().GetEnumFromDisplayName<AuthenticationScheme>();
                     }
                 },
                 {
                     "bearerFormat", (o, n) =>
                     {
-                        o.BearerFormat = n.GetScalarValue();
+                        o.BearerFormat = n.GetScalarValue().GetEnumFromDisplayName<BearerFormat>();
                     }
                 },
                 {

src/Microsoft.OpenApi/Models/OpenApiSecurityScheme.cs

@@ -118,8 +118,8 @@ public void SerializeAsV3WithoutReference(IOpenApiWriter writer)
                     // These properties apply to http type only.
                     // scheme
                     // bearerFormat
-                    writer.WriteProperty(OpenApiConstants.Scheme, Scheme);
-                    writer.WriteProperty(OpenApiConstants.BearerFormat, BearerFormat);
+                    writer.WriteProperty(OpenApiConstants.Scheme, Scheme.GetDisplayName());
+                    writer.WriteProperty(OpenApiConstants.BearerFormat, BearerFormat.GetDisplayName());
                     break;
                 case SecuritySchemeType.OAuth2:
                     // This property apply to oauth2 type only.