Add guzzlehttp/guzzle to the project

The guzzlehttp/guzzle package is required to use the HTTP Client
available in Laravel. Without this, attempting to use it fails
while showing no LSP or runtime errors.

Discussion: https://discourse.roots.io/t/26776

composer.json

@@ -45,6 +45,7 @@
     "php": ">=8.1",
     "ext-json": "*",
     "ext-mbstring": "*",
+    "guzzlehttp/guzzle": "^7.8",
     "illuminate/cache": "^10.43",
     "illuminate/config": "^10.43",
     "illuminate/console": "^10.43",