Flutter 3.29 minimum version

[diegotori]

Raised the minimum supported Flutter version to 3.29.

[codecov]

Codecov Report

Attention: Patch coverage is 44.09091% with 123 lines in your changes missing coverage. Please review.

Project coverage is 44.91%. Comparing base (fbb60cb) to head (e176704).
Report is 17 commits behind head on master.

Files with missing lines	Patch %	Lines
lib/src/cupertino/cupertino_controls.dart	39.70%	41 Missing ⚠️
lib/src/progress_bar.dart	3.03%	32 Missing ⚠️
lib/src/material/material_controls.dart	45.94%	20 Missing ⚠️
lib/src/material/material_desktop_controls.dart	55.88%	15 Missing ⚠️
...rc/cupertino/widgets/cupertino_options_dialog.dart	0.00%	6 Missing ⚠️
lib/src/material/widgets/options_dialog.dart	0.00%	3 Missing ⚠️
lib/src/models/subtitle_model.dart	0.00%	3 Missing ⚠️
lib/src/center_play_button.dart	80.00%	1 Missing ⚠️
lib/src/chewie_player.dart	66.66%	1 Missing ⚠️
...ib/src/material/widgets/playback_speed_dialog.dart	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #923      +/-   ##
==========================================
+ Coverage   44.55%   44.91%   +0.36%     
==========================================
  Files          22       21       -1     
  Lines        1560     1574      +14     
==========================================
+ Hits          695      707      +12     
- Misses        865      867       +2     

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