fix: update architecture diagrams for self-cluster and external clust… #3242

Job	Run time
Store event file	3s
Unit tests / Unit tests	2m 15s
Security tests / Security tests	25s
Integration tests / Build operator container	37s
Helm tests / Build operator container	25s
Helm tests / Helm integration tests (${{ matrix.k8s-version }})	1s
Helm tests / Report helm test results	1s
Integration tests / Integration tests	1s
Integration tests / External cluster tests	1s
Integration tests / Send Slack notification	1s
	3m 50s

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