Merge pull request #158 from phansys/travis

Bump "phpunit/phpunit" to ^7.5 and build on PHP 7.4 stable

Author: j-guyon

.travis.yml

@@ -14,7 +14,7 @@ matrix:
           env: SYMFONY_VERSION=4.4.*
         - php: 7.3
           env: SYMFONY_VERSION=4.4.*
-        - php: 7.4snapshot
+        - php: 7.4
           env: SYMFONY_VERSION=4.4.*
         - php: 7.2
           env: SYMFONY_VERSION=5.0.*
@@ -26,7 +26,6 @@ matrix:
           env: SYMFONY_VERSION=5.0.*
 
     allow_failures:
-        - php: 7.4snapshot
         - php: nightly
 
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