feat: Make spark-env.sh configurable (#473) #1796

Job	Run time
Check if committed README is the one we would render from the available parts	22s
Run Clippy	55s
Run Cargo Deny (advisories)	39s
Check if committed Helm charts are up to date	1m 14s
Run Cargo Deny (bans licenses sources)	42s
Run RustDoc	1m 17s
Run Rustfmt	13s
Run Cargo Tests	1m 5s
Run Cargo Udeps	1m 35s
Select target helm repository based on action trigger	1s
All tests passed	1s
Package Charts, Build Docker Image and publish them - ubuntu-latest	10m 42s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	9m 18s
Build and publish manifest list	42s
Run the OpenShift Preflight check on the published images	11s
	28m 57s

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