feat: update dependencies, add linting, fix codebase, cleanup (#11)

* chore(deps): update dependencies

* feat(tests): add matrix testing, problem matcher

* feat(lint): add php-cs-fixer, fix codebase

README.md

@@ -2,9 +2,6 @@
 
 [![Latest Version on Packagist][ico-version]][link-packagist]
 [![Software License][ico-license]](LICENSE.md)
-[![Build Status][ico-travis]][link-travis]
-[![Coverage Status][ico-scrutinizer]][link-scrutinizer]
-[![Quality Score][ico-code-quality]][link-code-quality]
 [![Total Downloads][ico-downloads]][link-downloads]
 
 This is a collection of Laravel Artisan commands created to help everyone
@@ -16,7 +13,7 @@ This package requires PHP 7.3 or later. The `composer.lock` file has been genera
 
 ### Step 1: Install Through Composer
 
-``` bash
+```bash
 $ composer require superhelio/commands --dev
 ```
 
@@ -35,12 +32,12 @@ public function register()
 
 ## Usage
 
-- *superhelio:gozer*
-    - Force delete database tables that have your table prefix
-    - `php artisan superhelio:gozer`
-- *superhelio:reload*
-    - Reset database, migrate and seed
-    - `php artisan superhelio:reload`
+- _superhelio:gozer_
+  - Force delete database tables that have your table prefix
+  - `php artisan superhelio:gozer`
+- _superhelio:reload_
+  - Reset database, migrate and seed
+  - `php artisan superhelio:reload`
 
 ## Change log
 
@@ -48,7 +45,7 @@ Please see [CHANGELOG](CHANGELOG.md) for more information what has changed recen
 
 ## Testing
 
-``` bash
+```bash
 $ composer test
 ```
 
@@ -67,15 +64,8 @@ The MIT License (MIT). Please see [License File](LICENSE.md) for more informatio
 
 [ico-version]: https://img.shields.io/packagist/v/superhelio/commands.svg?style=flat-square
 [ico-license]: https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square
-[ico-travis]: https://img.shields.io/travis/superhelio/commands/master.svg?style=flat-square
-[ico-scrutinizer]: https://img.shields.io/scrutinizer/coverage/g/superhelio/commands.svg?style=flat-square
-[ico-code-quality]: https://img.shields.io/scrutinizer/g/superhelio/commands.svg?style=flat-square
 [ico-downloads]: https://img.shields.io/packagist/dt/superhelio/commands.svg?style=flat-square
-
 [link-packagist]: https://packagist.org/packages/superhelio/commands
-[link-travis]: https://travis-ci.org/superhelio/commands
-[link-scrutinizer]: https://scrutinizer-ci.com/g/superhelio/commands/code-structure
-[link-code-quality]: https://scrutinizer-ci.com/g/superhelio/commands
 [link-downloads]: https://packagist.org/packages/superhelio/commands
 [link-author]: https://github.com/superhelio
 [link-contributors]: https://github.com/superhelio/commands/graphs/contributors