ci: Tweak the integration test configuration #2726

Job	Run time
Run Cargo Udeps	1m 53s
Decide if Helm charts are pushed to the helm repository based on action trigger	2s
Run Rustfmt	14s
Run Cargo Deny (advisories)	49s
Run Cargo Deny (bans licenses sources)	47s
Run Clippy	35s
Run RustDoc	1m 22s
Check if committed README is the one we would render from the available parts	29s
Run Cargo Tests	46s
Check if committed Helm charts are up to date	51s
All tests passed	3s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	10m 9s
Package Charts, Build Docker Image and publish them - ubuntu-latest	11m 16s
Build and publish manifest list	41s
Run the OpenShift Preflight check on the published images	17s
	30m 14s

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