Update symfony/console from v3.4.28 to v3.4.31

[violinist-bot]

If you have a high test coverage index, and your tests for this pull request are passing, it should be both safe and recommended to merge this update.

Here is a list of changes between the version you use, and the version this pull request updates to:

• 4510f04e [Console] fix return type declarations
• e5368e42 Fix inconsistent return points.
• 191227ef [Console] fixed a PHP notice when there is no function
• bdbbf6ae Remove superfluous phpdoc tags
• 8583965e minor #33142 Fixed markdown file (lyrixx)
• f889dc7e Fixed markdown file
• c3e573f5 Fix return statements
• 231bd81a minor #32800 Improve some URLs (Arman-Hosseini)
• 1f9d4877 Improve some URLs
• fd989c85 Fix some return type annotations.
• 76232949 Fix inconsistent return points.
• 6d9409ef Use assertStringContainsString when needed
• 1680470e Fix tests on console
• e97d3392 Remove use of ForwardCompatTrait
• 08a479f4 Adopt @PHPUnit55Migration:risky rule of php-cs-fixer
• ce9e68b9 Fix deprecated phpunit annotation
• 61ecb701 Replace calls to setExpectedException by Pollyfill
• c4fdacf7 Make tests support phpunit 8
• 93261ed9 [Console] fix warning on PHP 7.4
• 12940f20 Fix multiSelect ChoiceQuestion when answers have spaces
• c26324c6 [Console] Update to inherit and add licence
• c4d2f352 Fix json-encoding when JSON_THROW_ON_ERROR is used
• 6eec58df [HttpFoundation] work around PHP 7.3 bug related to json_encode()
• 5de015a0 Use willReturn() instead of will(returnValue()).

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