argon2i should be argon2i.yml #26038
Description
On Ubuntu 18.04, without the $subject change, we get:
There were 2 errors:
1) Symfony\Bundle\SecurityBundle\Tests\Functional\UserPasswordEncoderCommandTest::testEncodePasswordArgon2i
InvalidArgumentException: The root config "/<<BUILDDIR>>/symfony-3.4.3+dfsg/src/Symfony/Bundle/SecurityBundle/Tests/Functional/app/PasswordEncode/argon2i" does not exist.
/<<BUILDDIR>>/symfony-3.4.3+dfsg/src/Symfony/Bundle/SecurityBundle/Tests/Functional/app/AppKernel.php:40
/<<BUILDDIR>>/symfony-3.4.3+dfsg/src/Symfony/Bundle/SecurityBundle/Tests/Functional/WebTestCase.php:65
/<<BUILDDIR>>/symfony-3.4.3+dfsg/src/Symfony/Bundle/SecurityBundle/Tests/Functional/UserPasswordEncoderCommandTest.php:275
/<<BUILDDIR>>/symfony-3.4.3+dfsg/src/Symfony/Bundle/SecurityBundle/Tests/Functional/UserPasswordEncoderCommandTest.php:78
2) Symfony\Bundle\SecurityBundle\Tests\Functional\UserPasswordEncoderCommandTest::testEncodePasswordArgon2iOutput
InvalidArgumentException: The root config "/<<BUILDDIR>>/symfony-3.4.3+dfsg/src/Symfony/Bundle/SecurityBundle/Tests/Functional/app/PasswordEncode/argon2i" does not exist.
/<<BUILDDIR>>/symfony-3.4.3+dfsg/src/Symfony/Bundle/SecurityBundle/Tests/Functional/app/AppKernel.php:40
/<<BUILDDIR>>/symfony-3.4.3+dfsg/src/Symfony/Bundle/SecurityBundle/Tests/Functional/WebTestCase.php:65
/<<BUILDDIR>>/symfony-3.4.3+dfsg/src/Symfony/Bundle/SecurityBundle/Tests/Functional/UserPasswordEncoderCommandTest.php:275
/<<BUILDDIR>>/symfony-3.4.3+dfsg/src/Symfony/Bundle/SecurityBundle/Tests/Functional/UserPasswordEncoderCommandTest.php:160
Additionally, the above seems like it should be User7 to match the xml and php files.