Fix encoding issue when secret key contains plus sign

[oshmyheliuk]

Description

If some of the REMOTE_STORAGE_ options contain + sign inside value the tests running will fail as here https://github.com/magento-commerce/magento2-functional-testing-framework/blob/develop/etc/config/command.php#L15 urldecode will remove pluses + from command and setup:config:set --remote-storage-driver=... will fail with Too many arguments, expected arguments "command".

I got this issue as the current REMOTE_STORAGE_AWSS3_SECRET_KEY value contains two + signs.
I tried, with single quotes or double quotes but they are ignored and option values in command passing without quotes.

For example, I’ve set:

REMOTE_STORAGE_AWSS3_ACCESS_KEY='AKIAAFIELSFN+FNM7S2T+VORAXPQ'

command.php received:

php bin/magento setup:config:set ... --remote-storage-key=AKIAAFIELSFN+FNM7S2T+VORAXPQ

and after urldecode will be

php bin/magento setup:config:set ... --remote-storage-key=AKIAAFIELSFN FNM7S2T VORAXPQ

Fixed Issues (if relevant)

1. magento/magento2-functional-testing-framework#<issue_number>: Issue title
2. ...

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/verification tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)
• Changes to Framework doesn't have backward incompatible changes for tests or have related Pull Request with fixes to tests

[jilu1]

@oshmyheliuk
Thank you for fixing the issue and submit the pull request!

@magento import pull request to https://github.com/magento-commerce/magento2-functional-testing-framework

[m2-github-services]

@jilu1 the Pull Request is successfully imported.