Configuration defaultEnv default value is not readed

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Current behavior

Default value for property defaultEnv is not read

Expected behavior

If the env variable is not declared use the default value

Minimal reproduction of the problem with instructions

With this configuration

{
  "defaultEnv": {
    "default": "development",
    "ENV": "SSO_DB_ENVIRONMENT"
  },
  "sql-file": true,
  "multipleStatements": true,
  "development": {
    "driver": "mysql",
    "user": "root",
    "password": "password",
    "host": "localhost",
    "port": "3306",
    "sql-file": true,
    "multipleStatements": true
  },
  "production": {
    "driver": "mysql",
    "user": {
      "ENV": "SSO_DB_USERNAME"
    },
    "password": {
      "ENV": "SSO_DB_PASSWORD"
    },
    "host": {
      "ENV": "SSO_DB_HOST"
    },
    "port": {
      "ENV": "SSO_DB_PORT"
    },
    "sql-file": true,
    "multipleStatements": true
  }
}

I run:

db-migrate --config ./database-creation.json db:create sso

Return a exit code 1 with this error:

[ERROR] Error: Environment(s) '' not found.
    at Config.exports.setCurrent (D:\projects\dg\sso-service\node_modules\db-migrate\lib\config.js:23:11)      
    at Object.exports.loadObject (D:\projects\dg\sso-service\node_modules\db-migrate\lib\config.js:183:11)     
    at Object.exports.loadFile (D:\projects\dg\sso-service\node_modules\db-migrate\lib\config.js:94:18)        
    at loadConfig (D:\projects\dg\sso-service\node_modules\db-migrate\lib\commands\helper\load-config.js:12:18)
    at new dbmigrate (D:\projects\dg\sso-service\node_modules\db-migrate\api.js:77:43)
    at Object.module.exports.getInstance (D:\projects\dg\sso-service\node_modules\db-migrate\index.js:85:10)   
    at D:\projects\dg\sso-service\node_modules\db-migrate\bin\db-migrate:32:25
    at D:\projects\dg\sso-service\node_modules\resolve\lib\async.js:142:25
    at maybeRealpath (D:\projects\dg\sso-service\node_modules\resolve\lib\async.js:50:9)
    at D:\projects\dg\sso-service\node_modules\resolve\lib\async.js:138:24
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Environment

db-migrate version: 0.11.13
mysql: 2.2.0
Additional information:
- Node version: v16.13.1
- Platform:  Windows 10