[sonic-utilities]: Advance submodule (#8505)

Why I did it
Update sonic-utilities submodule to include below commits:
29f4a16 Global and Interface commands for IPv6 Link local address enhancements (#1159)
a99d56d Improve config error handling on version_info (#1760)
5002745 Load the database global_db. (#1752)
Signed-off-by: Suvarna Meenakshi <sumeenak@microsoft.com>