Caret version range for 5.x laravel versions

This is just for better readability of the composer.json file.

For more information about Caret Version Range, refer to composer's
documentation:
https://getcomposer.org/doc/articles/versions.md#caret-version-range-

composer.json

@@ -25,7 +25,7 @@
     },
     "require": {
         "php-opencloud/openstack": "^3.0",
-        "illuminate/support": "5.4.x|5.5.x|5.6.x|5.7.x|5.8.x|6.0.x|6.1.x|6.2.x",
+        "illuminate/support": "^5.4|6.0.x|6.1.x|6.2.x",
         "league/flysystem": "^1.0",
         "nimbusoft/flysystem-openstack-swift": "^0.2.1",
         "nesbot/carbon": "^1.26.3 || ^2.0"