Add PSR-6 cache provider

Author: tomhelmer

composer.json

@@ -16,7 +16,8 @@
     "require-dev": {
         "nunomaduro/collision": "^5.3|^6|^7|^8",
         "orchestra/testbench": "^6.18|^7|^8",
-        "phpunit/phpunit": "^9.3|^10|^11"
+        "phpunit/phpunit": "^9.3|^10|^11",
+        "symfony/cache" : "^6.4|^7.0"
     },
     "autoload": {
         "psr-4": {

src/GsvAuth0Provider.php

@@ -23,6 +23,7 @@ public function __construct(?string $domain, ?string $audience)
         $this->configuration = new SdkConfiguration(
             domain: $domain,
             audience: [$audience],
+            tokenCache: resolve('cache.psr6'),
             clientId: 'dummy',     // Don't need a real value as we only validate jwt's
             clientSecret: 'dummy', // Don't need a real value as we only validate jwt's
             cookieSecret: 'dummy', // Don't need a real value as we only validate jwt's