owncloud/core

Change: Update Symfony components to 3.4.36

The following Symfony components have been updated to version 3.4.36:
- console
- debug
- event-dispatcher
- polyfill-mbstring
- process
- translation
- routing

The following Symfony polyfill components have been updated to 1.31.1:
- polyfill-util
- polyfill-php56
- polyfill-iconv
- polyfill-php72
- polyfill-intl-idn
- polyfill-ctype

https://symfony.com/blog/symfony-3-4-36-released
https://github.com/owncloud/core/pull/36503