minor #912 update composer dependencies (dmaicher)

This PR was merged into the master branch.

Discussion
----------

update composer dependencies

Now only one deprecation is left when running the tests:

```
Remaining deprecation notices (1)

  1x: A tree builder without a root node is deprecated since Symfony 4.2 and will not be supported anymore in 5.0.
    1x in AddUserCommandTest::testCreateUserNonInteractive from App\Tests\Command
```

It's coming from https://github.com/whiteoctober/WhiteOctoberPagerfantaBundle. it was fixed already but there is no release yet.

```
Package operations: 0 installs, 47 updates, 0 removals
  - Updating symfony/http-foundation (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/contracts (v1.0.1 => v1.0.2): Loading from cache
  - Updating symfony/event-dispatcher (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/debug (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/http-kernel (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/routing (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/finder (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/filesystem (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/dependency-injection (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/config (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/var-exporter (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/cache (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/framework-bundle (v4.2.0 => v4.2.1): Loading from cache
  - Updating sensio/framework-extra-bundle (v5.2.2 => v5.2.3): Loading from cache
  - Updating symfony/asset (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/doctrine-bridge (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/expression-language (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/inflector (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/property-access (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/options-resolver (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/intl (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/form (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/monolog-bridge (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/security-core (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/security-http (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/security-guard (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/security-csrf (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/security-bundle (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/translation (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/validator (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/yaml (v4.2.0 => v4.2.1): Loading from cache
  - Updating twig/extensions (v1.5.3 => v1.5.4): Loading from cache
  - Updating symfony/console (v4.2.0 => v4.2.1): Loading from cache
  - Updating dama/doctrine-test-bundle (v5.0.1 => v5.0.2): Loading from cache
  - Updating symfony/dom-crawler (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/browser-kit (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/css-selector (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/var-dumper (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/twig-bridge (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/debug-bundle (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/dotenv (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/phpunit-bridge (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/stopwatch (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/twig-bundle (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/web-profiler-bundle (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/process (v4.2.0 => v4.2.1): Loading from cache
  - Updating symfony/web-server-bundle (v4.2.0 => v4.2.1): Loading from cache
```

Commits
-------

cb19875 update composer dependencies