chore: update PHP and Laravel version requirements (#917)

* chore: update PHP and Laravel version requirements

Previous (unsupported) versions were kept in the composer.json file. These version constraints are now aligned with what is mentioned in the README and the run-tests action.

* chore: prevent prefer-lowest tests from failing due to PHPUnit 10 deprecations

composer.json

@@ -16,12 +16,12 @@
         }
     ],
     "require": {
-        "php": ">=7.1.0",
-        "laravel/framework": "~5.2.0||~5.3.0||~5.4.0||~5.5.0||~5.6.0||~5.7.0||~5.8.0||^6.0||^7.0||^8.0||^9.0|^10.0||^11.0"
+        "php": "^8.2",
+        "laravel/framework": "^10.0|^11.0"
     },
     "require-dev": {
-        "orchestra/testbench-browser-kit": "~3.4|~3.8|~4.0|^7.12|^8.5|^9.0",
-        "phpunit/phpunit": "6.0.*|^8.0|^9.5.10|^10.0"
+        "orchestra/testbench-browser-kit": "^8.5|^9.0",
+        "phpunit/phpunit": "^9.5.10|^10.0"
     },
     "suggest": {
         "ext-intl": "*"