Bump firebase/php-jwt from 6.11.1 to 7.0.0 in /www

Bumps [firebase/php-jwt](https://github.com/firebase/php-jwt) from 6.11.1 to 7.0.0.
- [Release notes](https://github.com/firebase/php-jwt/releases)
- [Changelog](https://github.com/firebase/php-jwt/blob/main/CHANGELOG.md)
- [Commits](googleapis/php-jwt@v6.11.1...v7.0.0)

---
updated-dependencies:
- dependency-name: firebase/php-jwt
  dependency-version: 7.0.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

www/composer.json

@@ -34,7 +34,7 @@
     "guzzlehttp/guzzle": "@stable",
     "steverhoades/oauth2-openid-connect-server": "@stable",
     "phpoffice/phpspreadsheet": "@stable",
-    "firebase/php-jwt": "6.*",
+    "firebase/php-jwt": "7.*",
     "donatj/phpuseragentparser": "@stable",
     "league/oauth2-client": "@stable",
     "league/oauth2-google": "@stable",