Merge branch '2.4.8-beta1-develop' into cia-bugfix-ce-20240712

Author: tranthienbinh1989

app/code/Magento/JwtUserToken/Model/SecretBasedJwksFactory.php

@@ -35,6 +35,7 @@ class SecretBasedJwksFactory
     public function __construct(DeploymentConfig $deploymentConfig, JwkFactory $jwkFactory)
     {
         $this->keys = preg_split('/\s+/s', trim((string)$deploymentConfig->get('crypt/key')));
+        $this->keys = [end($this->keys)];
         //Making sure keys are large enough.
         foreach ($this->keys as &$key) {
             $key = str_pad($key, 2048, '&', STR_PAD_BOTH);
@@ -48,6 +49,8 @@ public function __construct(DeploymentConfig $deploymentConfig, JwkFactory $jwkF
      * @param string $algorithm
      * @return Jwk[]
      * @throws \InvalidArgumentException When algorithm is not recognized.
+     *
+     * @SuppressWarnings(PHPMD.CyclomaticComplexity)
      */
     public function createFor(string $algorithm): array
     {