node version is updated in circleci

.circleci/config.yml

@@ -32,7 +32,7 @@ orbs:
 jobs:
   markdownlint:
     docker:
-    - image: circleci/node:16.15.0
+    - image: cimg/node:18.14.1
       auth:
         username: ${DOCKER_USERNAME}
         password: ${DOCKER_PASSWORD}