Support for spatie/laravel-backup v7. (#20)

Author: donoskaro

composer.json

@@ -21,7 +21,7 @@
         "php": "^7.3|^8.0",
         "ext-zip": "^1.14.0",
         "illuminate/support": "^6.0|^7.0|^8.0",
-        "spatie/laravel-backup": "~6.0"
+        "spatie/laravel-backup": "~6.0|~7.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^8.0|^9.0",