Update Composer dependencies (2018-09-24)

```
Loading composer repositories with package information
The "https://packagist.org/packages.json" file could not be downloaded: failed to open stream: Connection timed out
https://packagist.org could not be fully loaded, package information was loaded from the local cache and may be out of date
Updating dependencies (including require-dev)
Package operations: 0 installs, 3 updates, 0 removals
  - Updating wp-cli/core-command (v2.0.0 => v2.0.1): Loading from cache
  - Updating wp-cli/eval-command (v2.0.0 => v2.0.1): Downloading (100%)
  - Updating squizlabs/php_codesniffer (3.3.1 => 3.3.2): Loading from cache
Writing lock file
Generating autoload files
PHP CodeSniffer Config installed_paths set to ../../phpcompatibility/phpcompatibility-wp/,../../phpcompatibility/php-compatibility/,../../wp-coding-standards/wpcs/
```

Author: wp-make-coffee