feat: Make OPENSEARCH_HOME and OPENSEARCH_PATH_CONF overridable #63

Job	Run time
Decide if Helm charts are pushed to the helm repository based on action trigger	4s
Run Cargo Udeps	1m 51s
Run Rustfmt	23s
Run Cargo Deny (advisories)	47s
Run Cargo Deny (bans licenses sources)	42s
Run Clippy	34s
Run RustDoc	1m 23s
Check if committed Helm charts are up to date	41s
Run Cargo Tests	32s
Check if committed README is the one we would render from the available parts	24s
All tests passed	4s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	14m 10s
Package Charts, Build Docker Image and publish them - ubuntu-latest	11m 35s
Build and publish manifest list	42s
Run the OpenShift Preflight check on the published images	22s
	34m 14s

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