Update travis setup for composer 2.

Signed-off-by: Mior Muhammad Zaki <[email protected]>

.travis.yml

@@ -23,10 +23,10 @@ before_install:
  - composer config discard-changes true
 
 before_script:
- - composer require "laravel/framework=${laravel}" --prefer-dist --no-interaction --no-suggest
- - if [[ $setup = 'basic' ]]; then travis_retry composer install --prefer-dist --no-interaction --no-suggest; fi
- - if [[ $setup = 'stable' ]]; then travis_retry composer update --prefer-dist --no-interaction --no-suggest --prefer-stable; fi
- - if [[ $setup = 'lowest' ]]; then travis_retry composer update --prefer-dist --no-interaction --no-suggest --prefer-lowest --prefer-stable; fi
+ - composer require "laravel/framework=${laravel}" --prefer-dist --no-interaction --no-update
+ - if [[ $setup = 'basic' ]]; then travis_retry composer install --prefer-dist --no-interaction; fi
+ - if [[ $setup = 'stable' ]]; then travis_retry composer update --prefer-dist --no-interaction --prefer-stable; fi
+ - if [[ $setup = 'lowest' ]]; then travis_retry composer update --prefer-dist --no-interaction --prefer-lowest --prefer-stable; fi
  - if [[ $setup = 'coveralls' ]]; then wget https://github.com/php-coveralls/php-coveralls/releases/download/v2.2.0/php-coveralls.phar; chmod +x php-coveralls.phar; fi
 
 script: