Update player composer dependencies
Update player composer dependencies

```
  - Updating composer/ca-bundle (1.0.8 => 1.1.0): Loading from cache
  - Updating blackfire/php-sdk (v1.11.0 => v1.11.3): Loading from cache
  - Updating symfony/debug (v3.3.9 => v3.4.1): Loading from cache
  - Updating symfony/polyfill-mbstring (v1.5.0 => v1.6.0): Loading from cache
  - Updating symfony/console (v3.3.9 => v3.4.1): Loading from cache
  - Updating symfony/css-selector (v3.3.9 => v3.4.1): Loading from cache
  - Updating symfony/dom-crawler (v3.3.9 => v3.4.1): Loading from cache
  - Updating symfony/polyfill-apcu (v1.5.0 => v1.6.0): Loading from cache
  - Updating symfony/cache (v3.3.9 => v3.4.1): Loading from cache
  - Updating symfony/expression-language (v3.3.9 => v3.4.1): Loading from cache
  - Updating symfony/filesystem (v3.3.9 => v3.4.1): Loading from cache
  - Updating symfony/var-dumper (v3.3.9 => v3.4.1): Loading from cache
  - Updating symfony/yaml (v3.3.9 => v3.4.1): Loading from cache
  - Updating symfony/finder (v3.3.9 => v3.4.1): Loading from cache
  - Updating symfony/process (v3.3.9 => v3.4.1): Loading from cache
```

blackfireio/player