chore: Exclude dev-server dir from lint-staged

We don't want to fail the commit/publish when e.g. we have
a console.log call in a dev server test plugin

.lintstagedrc.json

@@ -8,7 +8,7 @@
     "npm run format",
     "git add"
   ],
-  "packages/**/*.ts": [
+  "packages/!(dev-server)/**/*.ts": [
     "npm run lint",
     "npm run format",
     "git add"