Fix composer memory limit

Author: mmghv

.travis.yml

@@ -5,5 +5,5 @@ php:
   - 7.4
 
 script:
-  - composer install
+  - COMPOSER_MEMORY_LIMIT=-1 travis_retry composer install --prefer-dist --no-interaction
   - phpunit

README.md

@@ -1,7 +1,7 @@
 # Lumen Route Binding
 
 [![Build Status](https://travis-ci.org/mmghv/lumen-route-binding.svg?branch=master)](https://travis-ci.org/mmghv/lumen-route-binding)
-[![Lumen Version](https://img.shields.io/badge/Lumen-5%20--%207-orange.svg)](https://github.com/laravel/lumen)
+[![Lumen Version](https://img.shields.io/badge/Lumen-5%20--%208-orange.svg)](https://github.com/laravel/lumen)
 [![Latest Stable Version](https://poser.pugx.org/mmghv/lumen-route-binding/v/stable)](https://packagist.org/packages/mmghv/lumen-route-binding)
 [![Total Downloads](https://poser.pugx.org/mmghv/lumen-route-binding/downloads)](https://packagist.org/packages/mmghv/lumen-route-binding)
 [![Latest Unstable Version](https://poser.pugx.org/mmghv/lumen-route-binding/v/unstable)](https://packagist.org/packages/mmghv/lumen-route-binding)