add clean back

dawn-docs-client/dev

@@ -66,11 +66,11 @@ pipeline {
                 git branch: 'main',
                 credentialsId: 'tgsiegel-gitlab-ssh',
                 url: 'git@gitlab.cs.umd.edu:dawn/dawn-docs.git'
-                // gatsby clean
 
                 sh '''
                 npm i @lmdb/lmdb-linux-x64
                 npm i
+                gatsby clean
                 npm run build:internal
             '''
             }