fix: Set default value for `overwrite` to `null` which by default is `false`#14

bryantbiggs merged 1 commit intoterraform-aws-modules:masterterraform-aws-modules/terraform-aws-ssm-parameter:masterfrom

rockholla:fix/overwrite-param-default-nullrockholla/terraform-aws-ssm-parameter:fix/overwrite-param-default-nullCopy head branch name to clipboard