Bump firebase/php-jwt from 5.0.0 to 6.0.0

Bumps [firebase/php-jwt](https://github.com/firebase/php-jwt) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/firebase/php-jwt/releases)
- [Changelog](https://github.com/firebase/php-jwt/blob/main/CHANGELOG.md)
- [Commits](firebase/php-jwt@v5.0.0...v6.0.0)

---
updated-dependencies:
- dependency-name: firebase/php-jwt
  dependency-type: direct:development
...

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

Author: dependabot[bot]

composer.json

@@ -34,7 +34,7 @@
         "friendsofphp/php-cs-fixer": "^2.16",
         "symfony/var-dumper": "^5.0",
         "nesbot/carbon": "^2.30",
-        "firebase/php-jwt": "^5.0"
+        "firebase/php-jwt": "^5.0 || ^6.0"
     },
     "scripts": {
         "cs": [