Package, test and upload core

Update the README.md with the new automatic workflow #244

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
Build and package core	11m 38s
Test giga board	2m 46s
Test nano33ble board	2m 44s
Test niclasense board	2m 41s
Test opta board	2m 51s
Test portentac33 board	2m 40s
Test portentah7 board	2m 42s
Test ek_ra8d1 board	2m 46s
Test frdm_mcxn947 board	2m 46s
Test frdm_rw612 board	2m 41s
Collect logs	7s
Publish core	17s
Publish json	5s
	36m 44s