fix Breaking change net 5 missing method

app.UseDatabaseErrorPage()
https://github.com/dotnet/efcore/issues/22687

src/Services/Identity/Identity.API/Startup.cs

@@ -128,7 +128,6 @@ namespace Microsoft.eShopOnContainers.Services.Identity.API
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();
-                app.UseDatabaseErrorPage();
             }
             else
             {