Added default value(y) for confirmation question

[aheadWorks]

Description (*)

Default value is assumed as "y" for ConfigSetCommand confirmation.

Fixed Issues (if relevant)

1. 2.3-beta32: DB credentials are not updated in non-interactive mode by bin/magento setup:config:set  #18965: 2.3-beta32: DB credentials are not updated in non-interactive mode by bin/magento setup:config:set

Manual testing scenarios (*)

1. Set any config value requiring configuration in non-interactive mode with bin/magento setup:config:set -n
2. Check that value is updated

Contribution checklist (*)

• [* ] Pull request has a meaningful description of its purpose
• [*] All commits are accompanied by meaningful commit messages
• [*] All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-cicd2]

All committers have signed the CLA.

[magento-engcom-team]

Hi @aheadWorks. Thank you for your contribution
Here is some useful tips how you can test your changes using Magento test environment.
Add the comment under your pull request to deploy test or vanilla Magento instance:

• @magento-engcom-team give me test instance - deploy test instance based on PR changes
• @magento-engcom-team give me $VERSION instance - deploy vanilla Magento instance

For more details, please, review the Magento Contributor Assistant documentation

[VladimirZaets]

Hi @aheadWorks , please, sign CLA, otherwise, we can't process your pull request

[aheadWorks]

@VladimirZaets did it

[VladimirZaets]

@aheadWorks Thanks

[magento-engcom-team]

Hi @VladimirZaets, thank you for the review.
ENGCOM-3346 has been created to process this Pull Request

[magento-engcom-team]

@aheadWorks thank you for contributing. Please accept Community Contributors team invitation here to gain extended permissions for this repository.

[magento-engcom-team]

Hi @aheadWorks. Thank you for your contribution.
We will aim to release these changes as part of 2.3.1.
Please check the release notes for final confirmation.