Bump firebase/php-jwt from 2.2.0 to 6.0.0

Bumps [firebase/php-jwt](https://github.com/firebase/php-jwt) from 2.2.0 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/v2.2.0...v6.0.0)

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

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

composer.json

@@ -7,7 +7,7 @@
     "indieweb/date-formatter": "0.3.*",
     "indieauth/client": ">=0.5.1",
     "mpratt/relativetime": ">=1.0",
-    "firebase/php-jwt": "2.*",
+    "firebase/php-jwt": "6.*",
     "abraham/twitteroauth": "*",
     "ezyang/htmlpurifier": "4.*",
     "p3k/multipart": ">=0.2.0",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "31929d77a3beed9464c673c1fc112bae",
+    "content-hash": "7a7e63d18026542673380e30a8c9cf80",
     "packages": [
         {
             "name": "abraham/twitteroauth",
@@ -269,27 +269,32 @@
         },
         {
             "name": "firebase/php-jwt",
-            "version": "v2.2.0",
+            "version": "v6.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/firebase/php-jwt.git",
-                "reference": "e0a75bfb6413f22092c99b70f310ccb2cca3efa5"
+                "reference": "0541cba75ab108ef901985e68055a92646c73534"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/e0a75bfb6413f22092c99b70f310ccb2cca3efa5",
-                "reference": "e0a75bfb6413f22092c99b70f310ccb2cca3efa5",
+                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/0541cba75ab108ef901985e68055a92646c73534",
+                "reference": "0541cba75ab108ef901985e68055a92646c73534",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.2.0"
+                "php": ">=5.3.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": ">=4.8 <=9"
+            },
+            "suggest": {
+                "paragonie/sodium_compat": "Support EdDSA (Ed25519) signatures when libsodium is not present"
             },
             "type": "library",
             "autoload": {
-                "classmap": [
-                    "Authentication/",
-                    "Exceptions/"
-                ]
+                "psr-4": {
+                    "Firebase\\JWT\\": "src"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -309,7 +314,15 @@
             ],
             "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": "2015-06-22T23:26:39+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": "gajus/dindent",
@@ -1252,5 +1265,5 @@
     "prefer-lowest": false,
     "platform": [],
     "platform-dev": [],
-    "plugin-api-version": "2.0.0"
+    "plugin-api-version": "2.3.0"
 }