MC-19642: Change single pipes to double pipes in composer.json files

- Fixed test.composer.json

Author: Rrego6

lib/internal/Magento/Framework/App/Test/Unit/_files/test.composer.json

@@ -8,7 +8,7 @@
         "AFL-3.0"
     ],
     "require": {
-        "php": "~5.6.0|7.0.2|^7.0.6",
+        "php": "~5.6.0||7.0.2||^7.0.6",
         "ext-openssl": "*"
     },
     "require-dev": {