chore: Update changelog for release 25.3.0 #2018

Job	Run time
Run Cargo Udeps	1m 49s
Run Cargo Deny (bans licenses sources)	45s
Run Rustfmt	15s
Run Cargo Deny (advisories)	41s
Select target helm repository based on action trigger	3s
Check if committed README is the one we would render from the available parts	22s
Run Cargo Tests	29s
Run RustDoc	1m 15s
Run Clippy	27s
Check if committed Helm charts are up to date	45s
All tests passed	2s
Package Charts, Build Docker Image and publish them - ubuntu-latest	11m 38s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	11m 7s
Build and publish manifest list	52s
Run the OpenShift Preflight check on the published images	14s
	30m 44s

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