Update update tool config

Description

Update the branch for flowkit. Cadence 1.0 support got merged, and now is on main

[x] Targeted PR against master branch
[x] Linked to Github issue with discussion and accepted design OR link to spec that describes this work
[x] Code follows the standards mentioned here
[x] Updated relevant documentation
[x] Re-reviewed Files changed in the Github PR explorer
[x] Added appropriate labels