chore(docs): clarify that 3.4.0 is now LTS #2128

Job	Run time
Run Clippy	25s
Check if committed README is the one we would render from the available parts	22s
Run Cargo Deny (advisories)	38s
Check if committed Helm charts are up to date	46s
Run Cargo Deny (bans licenses sources)	39s
Run RustDoc	1m 9s
Run Rustfmt	12s
Run Cargo Tests	34s
Run Cargo Udeps	1m 42s
Select target helm repository based on action trigger	1s
All tests passed	1s
Package Charts, Build Docker Image and publish them - ubuntu-latest	10m 14s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	9m 25s
Build and publish manifest list	49s
Run the OpenShift Preflight check on the published images	11s
	27m 8s

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