[Travis] run tests on PHP 7.4

Author: Naktibalda

.travis.yml

@@ -1,24 +1,21 @@
 language: php
 stages:
   - test
-  - 
 php:
   - 5.6
   - 7.0
   - 7.1
   - 7.2
   - 7.3
-  - 7.4snapshot
-# faster builds on new travis setup not using sudo
-sudo: false
+  - 7.4
 
 install:
   - '[[ -z "$CI_USER_TOKEN" ]] || composer config github-oauth.github.com ${CI_USER_TOKEN};'
   - COMPOSER_MEMORY_LIMIT=-1 composer self-update && composer --version
   - COMPOSER_MEMORY_LIMIT=-1 composer install --prefer-dist --no-interaction
   - phpenv config-rm xdebug.ini
   - if [[ "$TRAVIS_PHP_VERSION" == "7.3" ]]; then pecl install -f pcov; fi
-  
+
 script:
   - php ./vendor/bin/codecept run
   - if [[ "$TRAVIS_PHP_VERSION" == "7.3" ]]; then php ./vendor/bin/codecept run --coverage-xml; fi