Auth 5.0.2 release note updates (#1468)

Author: paulb777

Firebase/Auth/CHANGELOG.md

@@ -1,7 +1,9 @@
 # v5.0.2
-- Fix an issue where JWT date timestamps weren't parsed correctly.
+- Fix an issue where JWT date timestamps weren't parsed correctly. (#1319)
 - Fix an issue where anonymous accounts weren't correctly promoted to
-  non-anonymous when linked with passwordless email auth accounts.
+  non-anonymous when linked with passwordless email auth accounts. (#1383)
+- Fix an exception from using an invalidated NSURLSession. (#1261)
+- Fix a data race issue caught by the sanitizer. (#1446)
 
 # v5.0.1
 - Restore 4.x level of support for extensions (#1357).