feat(helm): Allow Pod priorityClassName to be configured #2572

Job	Run time
Run Cargo Udeps	1m 54s
Decide if Helm charts are pushed to the helm repository based on action trigger	2s
Run RustDoc	1m 18s
Run Cargo Deny (bans licenses sources)	45s
Run Cargo Deny (advisories)	43s
Run Clippy	31s
Run Cargo Tests	35s
Run Rustfmt	14s
Check if committed Helm charts are up to date	51s
Check if committed README is the one we would render from the available parts	32s
All tests passed	5s
Package Charts, Build Docker Image and publish them - ubuntu-latest	14m 3s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	9m 40s
Build and publish manifest list	39s
Run the OpenShift Preflight check on the published images	21s
	32m 13s

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