chore(deps): bump @staffbase/staffbase-plugin-sdk to 1.3.8

Updates scaffoldTpl dependency from ^1.3.1 to ^1.3.8.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: maximizeIT

scaffoldTpl/package.json

@@ -6,7 +6,7 @@
     "start": "node ./bin/www"
   },
   "dependencies": {
-    "@staffbase/staffbase-plugin-sdk": "^1.3.1",
+    "@staffbase/staffbase-plugin-sdk": "^1.3.8",
     "cookie-parser": "^1.4.7",
     "debug": "^4.4.3",
     "express": "^5.2.1",