fix enter user id / password by env variable

EVCB_OCPP.Domain/Extensions/IServiceCollectionExtension.cs

@@ -114,8 +114,8 @@ public static class IServiceCollectionExtension
 
     public static string GetConnectionString(this IConfiguration configuration, string UserIdKey, string DbPassKey, string ConnectionStringKey)
     {
-        string dbUserId = string.IsNullOrEmpty(configuration[UserIdKey]) ? string.Empty : $"user id={configuration[UserIdKey]};";
-        string dbUserPass = string.IsNullOrEmpty(configuration[DbPassKey]) ? string.Empty : $"password={configuration[DbPassKey]};";
+        string dbUserId = string.IsNullOrEmpty(configuration[UserIdKey]) ? string.Empty : configuration[UserIdKey];
+        string dbUserPass = string.IsNullOrEmpty(configuration[DbPassKey]) ? string.Empty : configuration[DbPassKey];
         string connectionString = configuration.GetConnectionString(ConnectionStringKey);
 
         var builder = new SqlConnectionStringBuilder(connectionString);