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](https://github.com/firebase/php-jwt/compare/v5.0.0...v6.0.0)

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

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

composer.json

@@ -3,7 +3,7 @@
     "vendor-dir": "src/php/vendor"
   },
   "require": {
-    "firebase/php-jwt": "^5.0",
+    "firebase/php-jwt": "^6.0",
     "hashids/hashids": "^4.0"
   }
 }

composer.lock

@@ -4,27 +4,30 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "b2cfd40da6d3f90b0110c83afb8c3c0e",
+    "content-hash": "de8b45b3a55e70bb842099b9df3b65b7",
     "packages": [
         {
             "name": "firebase/php-jwt",
-            "version": "v5.0.0",
+            "version": "v6.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/firebase/php-jwt.git",
-                "reference": "9984a4d3a32ae7673d6971ea00bae9d0a1abba0e"
+                "reference": "0541cba75ab108ef901985e68055a92646c73534"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/9984a4d3a32ae7673d6971ea00bae9d0a1abba0e",
-                "reference": "9984a4d3a32ae7673d6971ea00bae9d0a1abba0e",
+                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/0541cba75ab108ef901985e68055a92646c73534",
+                "reference": "0541cba75ab108ef901985e68055a92646c73534",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.0"
             },
             "require-dev": {
-                "phpunit/phpunit": " 4.8.35"
+                "phpunit/phpunit": ">=4.8 <=9"
+            },
+            "suggest": {
+                "paragonie/sodium_compat": "Support EdDSA (Ed25519) signatures when libsodium is not present"
             },
             "type": "library",
             "autoload": {
@@ -50,7 +53,15 @@
             ],
             "description": "A simple library to encode and decode JSON Web Tokens (JWT) in PHP. Should conform to the current spec.",
             "homepage": "https://github.com/firebase/php-jwt",
-            "time": "2017-06-27T22:17:23+00:00"
+            "keywords": [
+                "jwt",
+                "php"
+            ],
+            "support": {
+                "issues": "https://github.com/firebase/php-jwt/issues",
+                "source": "https://github.com/firebase/php-jwt/tree/v6.0.0"
+            },
+            "time": "2022-01-24T15:18:34+00:00"
         },
         {
             "name": "hashids/hashids",
@@ -127,5 +138,6 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.3.0"
 }