Update to release-notes-bot-action 0.3.8

Author: SeanTAllen

.github/workflows/release-notes.yml

@@ -16,7 +16,7 @@ jobs:
     name: Update release notes
     steps:
       - name: Update
-        uses: docker://ghcr.io/ponylang/release-notes-bot-action:0.3.7
+        uses: docker://ghcr.io/ponylang/release-notes-bot-action:0.3.8
         with:
           git_user_name: "Ponylang Main Bot"
           git_user_email: "ponylang.main@gmail.com"