Update composer.json with current PHP version on Travis

WyriHaximus · WyriHaximus · commit f186687d80f4 · 2020-04-26T20:22:10.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -26,6 +26,7 @@ matrix:
 
 install:
   - ./travis-init.sh
+  - composer config platform.php $(php -r 'echo PHP_VERSION;')
   - composer install -n
 
 script:
