Build Chef CI examples on all platforms

Bump third_party/imgui/repo from `001f102` to `bce4db0` #429

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
Chef - Linux CI Examples	6m 32s
Chef - ESP32 CI Examples	9m 9s
Chef - NRFConnect CI Examples	9m 10s
Chef - Telink CI Examples	7m 27s
	32m 18s