feat(persistence): add pinned message reactions table

packages/stream_chat_persistence/test/mock_chat_database.dart

@@ -34,6 +34,12 @@ class MockChatDatabase extends Mock implements MoorChatDatabase {
   @override
   ReactionDao get reactionDao => _reactionDao ??= MockReactionDao();
 
+  PinnedMessageReactionDao? _pinnedMessageReactionDao;
+
+  @override
+  PinnedMessageReactionDao get pinnedMessageReactionDao =>
+      _pinnedMessageReactionDao ??= MockPinnedMessageReactionDao();
+
   ReadDao? _readDao;
 
   @override
@@ -70,6 +76,9 @@ class MockMemberDao extends Mock implements MemberDao {}
 
 class MockReactionDao extends Mock implements ReactionDao {}
 
+class MockPinnedMessageReactionDao extends Mock
+    implements PinnedMessageReactionDao {}
+
 class MockReadDao extends Mock implements ReadDao {}
 
 class MockChannelQueryDao extends Mock implements ChannelQueryDao {}