Update composer.json

Author: srenon

composer.json

@@ -34,7 +34,7 @@
  }
  ],
  "require": {
- "php": "~5.6.0|7.0.2|7.0.4|~7.0.6|~7.1.0|~7.1.3|~7.2.0|~7.3.0|~7.4.0",
+ "php": "7.0.2|7.0.4|~7.0.6|~7.1.0|~7.1.3|~7.2.0|~7.3.0|~7.4.0",
  "magento/module-backend": "100.0.*|100.1.*|100.2.*|101.0.*|102.0.*",
  "magento/framework": "100.0.*|100.1.*|101.0.*|102.0.*|103.0.*",
  "magepal/magento2-core": ">=1.1.11"