docs: fix downloads badge (yajra#3180)

Author: yajra

README.md

@@ -9,7 +9,7 @@
 [![Continuous Integration](https://github.com/yajra/laravel-datatables/actions/workflows/continuous-integration.yml/badge.svg)](https://github.com/yajra/laravel-datatables/actions/workflows/continuous-integration.yml)
 [![Static Analysis](https://github.com/yajra/laravel-datatables/actions/workflows/static-analysis.yml/badge.svg)](https://github.com/yajra/laravel-datatables/actions/workflows/static-analysis.yml)
 
-[![Total Downloads](https://poser.pugx.org/yajra/laravel-datatables-oracle/downloads.png)](https://packagist.org/packages/yajra/laravel-datatables-oracle)
+[![Total Downloads](https://poser.pugx.org/yajra/laravel-datatables-oracle/d/total.svg)](https://packagist.org/packages/yajra/laravel-datatables-oracle)
 [![License](https://img.shields.io/github/license/mashape/apistatus.svg)](https://packagist.org/packages/yajra/laravel-datatables-oracle)
 
 Laravel package for handling [server-side](https://www.datatables.net/manual/server-side) works of [DataTables](http://datatables.net) jQuery Plugin via [AJAX option](https://datatables.net/reference/option/ajax) by using Eloquent ORM, Fluent Query Builder or Collection.