docs: Update devguide to latest changes on container images #403

Job	Run time
Run tests on kas code (3.6)	2m 20s
Run tests on kas code (3.6)	1m 31s
Run tests on kas code (3.7)	1m 57s
Run tests on kas code (3.7)	1m 29s
Run tests on kas code (3.8)	1m 50s
Run tests on kas code (3.8)	1m 50s
Run tests on kas code (3.9)	1m 58s
Run tests on kas code (3.9)	1m 58s
Run tests on kas code (3.10)	1m 20s
Run tests on kas code (3.10)	1m 20s
Run tests on kas code (3.11)	1m 25s
Run tests on kas code (3.11)	1m 25s
Run tests on kas code (3.12)	1m 46s
Run tests on kas code (3.12)	1m 46s
Build, test and deploy container images	0s
Build, test and deploy container images (kas)	14m 24s
Build, test and deploy container images (kas-isar)	11m 40s
	49m 59s

Provide feedback