Add release date and version for 0821

chriskrycho · wagenet · commit 6cd0d776d026 · 2023-01-06T12:20:38.000-08:00
diff --git a/text/0821-public-types.md b/text/0821-public-types.md
@@ -1,8 +1,9 @@
 ---
 stage: released
 start-date: 2022-05-23T00:00:00.000Z
-release-date:
+release-date: 2022-12-13T23:20:00.000Z
 release-versions:
+  ember-source: v4.8.3
 teams:
   - framework
   - typescript
