Fix php version

TCB13 · TCB13 · commit d79c59a34c2d · 2019-09-11T13:43:45.000+01:00
diff --git a/composer.json b/composer.json
@@ -3,7 +3,7 @@
   "type": "library",
   "description": "",
   "require": {
-	"php": "^7.3",
+	"php": "^7.2",
 	"psr/http-message": "*",
 	"ext-json": "*",
 	"ext-curl": "*"
