Update guzzlehttp/guzzle requirement from 7.6.1 to 7.7.0

Updates the requirements on [guzzlehttp/guzzle](https://github.com/guzzle/guzzle) to permit the latest version.
- [Release notes](https://github.com/guzzle/guzzle/releases)
- [Changelog](https://github.com/guzzle/guzzle/blob/7.7/CHANGELOG.md)
- [Commits](guzzle/guzzle@7.6.1...7.7.0)

---
updated-dependencies:
- dependency-name: guzzlehttp/guzzle
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -37,7 +37,7 @@
     "fakerphp/faker": "^1.0",
     "gmajor/sr25519-bindings": "dev-main",
     "gmajor/substrate-codec-php": "dev-master",
-    "guzzlehttp/guzzle": "7.6.1",
+    "guzzlehttp/guzzle": "7.7.0",
     "illuminate/contracts": "^10.0",
     "kevinrob/guzzle-cache-middleware": "^4.0",
     "mll-lab/laravel-graphiql": "^3.0",