fix: remove unused env var #2175

Job	Run time
Check if committed Helm charts are up to date	40s
Run Cargo Deny (advisories)	41s
Check if committed README is the one we would render from the available parts	53s
Run Cargo Deny (bans licenses sources)	38s
Run Clippy	32s
Run RustDoc	1m 0s
Run Rustfmt	14s
Run Cargo Udeps	1m 23s
Run Cargo Tests	34s
Select target helm repository based on action trigger	1s
All tests passed	1s
Package Charts, Build Docker Image and publish them - ubuntu-latest	10m 35s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	9m 47s
Build and publish manifest list	41s
Run the OpenShift Preflight check on the published images	12s
	27m 52s

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