chore: update social post state [skip ci]

Author: github-actions[bot]

social/state.yaml

@@ -1,4 +1,4 @@
-currentIndex: 19
-lastPostedKey: collections/reverse-list-iteration
-lastTweetId: 2070179675016704143
-lastPostedAt: 2026-06-25T16:17:51.423489855Z
+currentIndex: 20
+lastPostedKey: enterprise/jpa-vs-jakarta-data
+lastTweetId: 2071637349176574052
+lastPostedAt: 2026-06-29T16:50:08.054460340Z