chore: update tests and docs to use bitnamilegacy #2536

Job	Run time
Run Cargo Udeps	2m 5s
Decide if Helm charts are pushed to the helm repository based on action trigger	2s
Run Cargo Deny (bans licenses sources)	48s
Run Cargo Deny (advisories)	44s
Run Rustfmt	13s
Run Clippy	33s
Check if committed README is the one we would render from the available parts	24s
Check if committed Helm charts are up to date	41s
Run RustDoc	1m 14s
Run Cargo Tests	36s
All tests passed	4s
Package Charts, Build Docker Image and publish them - ubuntu-latest	11m 43s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	9m 36s
Build and publish manifest list	42s
Run the OpenShift Preflight check on the published images	17s
	29m 42s

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