Add the role-group as a node attribute and document cluster scaling #221

Job	Run time
Decide if Helm charts are pushed to the helm repository based on action trigger	2s
Run Cargo Udeps	1m 51s
Run Rustfmt	14s
Check if committed README is the one we would render from the available parts	25s
Run Clippy	26s
Check if committed Helm charts are up to date	35s
Run Cargo Deny (bans licenses sources)	46s
Run Cargo Deny (advisories)	45s
Run RustDoc	1m 12s
Run Cargo Tests	35s
All tests passed	2s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	10m 4s
Package Charts, Build Docker Image and publish them - ubuntu-latest	10m 46s
Build and publish manifest list	46s
Run the OpenShift Preflight check on the published images	20s
	28m 49s

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