feat: bump ci node to 16

.woodpecker.yml

@@ -1,6 +1,6 @@
 pipeline:
     buildfrontend:
-        image: node:14
+        image: node:16
         commands:
             - yarn install --prefer-offline --frozen-lockfile
             - yarn test
@@ -9,15 +9,10 @@ pipeline:
             - yarn build
 
     deploy:
-        image: node:14
+        image: node:16
         when:
             event: push
             branch: master
         commands:
             - make ci-deploy
         secrets: [ gitea_write_deploy_key, librepages_deploy_secret ]
-
-    lint-frontend:
-        image: node:14
-        commands:
-            - yarn lint-ci