General information:

• Operating System:
• Terracognita version / tag:
• Did you build Terracognita from sources or did you use the Docker image:

Describe the bug:

When importing some aws_db_parameter_group we get the following error, this specific ones with the default. should be ignored same reason as for #376

╷
│ Error: only lowercase alphanumeric characters and hyphens allowed in parameter group "name"
│ 
│   with module.tf.aws_db_parameter_group.default_postgres9_6,
│   on module-tf/rds_relational_database.tf line 147, in resource "aws_db_parameter_group" "default_postgres9_6":
│  147:   name        = "default.postgres9.6"
│ 
╵

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