chore(ui): bump jiffy to v6.2.1

[xsahil03x]

No description provided.

[codecov-commenter]

Codecov Report

Patch coverage: 65.27% and no project coverage change.

Comparison is base (70310a5) 58.25% compared to head (9c665ce) 58.26%.

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Additional details and impacted files

@@           Coverage Diff           @@
##           v7.0.0    #1673   +/-   ##
=======================================
  Coverage   58.25%   58.26%           
=======================================
  Files         292      292           
  Lines       17915    17938   +23     
=======================================
+ Hits        10437    10452   +15     
- Misses       7478     7486    +8     

Impacted Files	Coverage Δ
...r/lib/src/message_list_view/message_list_view.dart	44.20% <0.00%> (-0.39%)	⬇️
.../channel_scroll_view/stream_channel_list_tile.dart	0.00% <0.00%> (ø)
...h_scroll_view/stream_message_search_list_tile.dart	0.00% <0.00%> (ø)
...l_view/user_scroll_view/stream_user_list_tile.dart	0.00% <0.00%> (ø)
...es/stream_chat_flutter/lib/src/user/user_item.dart	0.00% <0.00%> (ø)
..._chat_flutter/lib/src/channel/channel_preview.dart	46.39% <33.33%> (ø)
...b/src/message_input/stream_message_text_field.dart	48.76% <33.33%> (-0.30%)	⬇️
...stream_chat_flutter/lib/src/misc/date_divider.dart	73.91% <50.00%> (ø)
...eam_chat_flutter/lib/src/channel/channel_info.dart	82.35% <100.00%> (+0.26%)	⬆️
...hat_flutter/lib/src/localization/translations.dart	90.84% <100.00%> (+0.06%)	⬆️
... and 14 more

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