chore: remove 2.4 support (including JMX exporter) (#672) #2190

Job	Run time
Run Cargo Udeps	1m 58s
Decide if Helm charts are pushed to the helm repository based on action trigger	3s
Run Cargo Deny (bans licenses sources)	23s
Check if committed README is the one we would render from the available parts	24s
Run Cargo Deny (advisories)	24s
Run RustDoc	1m 6s
Check if committed Helm charts are up to date	40s
Run Cargo Tests	40s
Run Rustfmt	17s
Run Clippy	24s
All tests passed	3s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	10m 22s
Package Charts, Build Docker Image and publish them - ubuntu-latest	11m 37s
Build and publish manifest list	39s
Run the OpenShift Preflight check on the published images	25s
	29m 25s

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