Update known entries file [skip ci]

Author: github-actions[bot]

.github/scripts/known_entries.json

@@ -386,5 +386,9 @@
   "d41d8cd98f00b204e9800998ecf8427e": {
     "section_id": "may-3-2021",
     "title": "May 3, 2021"
+  },
+  "ce426d87c5f0d2d1fde99b0b0580912f": {
+    "section_id": "october-4-2021",
+    "title": "October 4, 2021"
   }
 }