Bump barryvdh/laravel-debugbar from 3.6.2 to 3.6.4

Bumps [barryvdh/laravel-debugbar](https://github.com/barryvdh/laravel-debugbar) from 3.6.2 to 3.6.4.
- [Release notes](https://github.com/barryvdh/laravel-debugbar/releases)
- [Changelog](https://github.com/barryvdh/laravel-debugbar/blob/master/changelog.md)
- [Commits](https://github.com/barryvdh/laravel-debugbar/compare/v3.6.2...v3.6.4)

---
updated-dependencies:
- dependency-name: barryvdh/laravel-debugbar
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -109,7 +109,7 @@
     "psr/log": "<2"
   },
   "require-dev": {
-    "barryvdh/laravel-debugbar": "^3.3",
+    "barryvdh/laravel-debugbar": "^3.6",
     "barryvdh/laravel-ide-helper": "2.*",
     "filp/whoops": "2.*",
     "fakerphp/faker": "1.*",