feat(helm): Allow Pod priorityClassName to be configured #2658

Job	Run time
Run Cargo Udeps	1m 58s
Decide if Helm charts are pushed to the helm repository based on action trigger	2s
Run Clippy	52s
Run Cargo Deny (advisories)	51s
Check if committed README is the one we would render from the available parts	27s
Check if committed Helm charts are up to date	39s
Run Cargo Tests	37s
Run Rustfmt	16s
Run RustDoc	1m 8s
Run Cargo Deny (bans licenses sources)	45s
All tests passed	2s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	9m 55s
Package Charts, Build Docker Image and publish them - ubuntu-latest	14m 22s
Build and publish manifest list	47s
Run the OpenShift Preflight check on the published images	22s
	33m 3s

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