✏ Replace travis shield with github actions shield

README.md

 Laravel MongoDB
 ===============
 
-[![Latest Stable Version](http://img.shields.io/github/release/jenssegers/laravel-mongodb.svg)](https://packagist.org/packages/jenssegers/mongodb) [![Total Downloads](http://img.shields.io/packagist/dm/jenssegers/mongodb.svg)](https://packagist.org/packages/jenssegers/mongodb) [![Build Status](http://img.shields.io/travis/jenssegers/laravel-mongodb.svg)](https://travis-ci.org/jenssegers/laravel-mongodb) [![Coverage Status](https://coveralls.io/repos/github/jenssegers/laravel-mongodb/badge.svg?branch=master)](https://coveralls.io/github/jenssegers/laravel-mongodb?branch=master) [![Donate](https://img.shields.io/badge/donate-paypal-blue.svg)](https://www.paypal.me/jenssegers)
+[![Latest Stable Version](http://img.shields.io/github/release/jenssegers/laravel-mongodb.svg)](https://packagist.org/packages/jenssegers/mongodb) [![Total Downloads](http://img.shields.io/packagist/dm/jenssegers/mongodb.svg)](https://packagist.org/packages/jenssegers/mongodb) [![Build Status](https://img.shields.io/github/workflow/status/jenssegers/laravel-mongodb/CI)](https://github.com/jenssegers/laravel-mongodb/actions) [![Coverage Status](https://coveralls.io/repos/github/jenssegers/laravel-mongodb/badge.svg?branch=master)](https://coveralls.io/github/jenssegers/laravel-mongodb?branch=master) [![Donate](https://img.shields.io/badge/donate-paypal-blue.svg)](https://www.paypal.me/jenssegers)
 
 An Eloquent model and Query builder with support for MongoDB, using the original Laravel API. *This library extends the original Laravel classes, so it uses exactly the same methods.*