Relax PHP version constaint in composer.json

Author: martin-helmich

composer.json

@@ -9,7 +9,7 @@
         }
     ],
     "require": {
-        "php": "^7.2 || ^7.3",
+        "php": "^7.2",
         "flow/jsonpath": "^0.5.0",
         "justinrainbow/json-schema": "^5.0"
     },
@@ -32,4 +32,4 @@
     "config": {
         "sort-packages": true
     }
-}
+}