Needs approval from an approver in each of these files:
- ~~[docs/CHANGELOG/OWNERS](https://github.com/karmada-io/karmada/blob/master/docs/CHANGELOG/OWNERS)~~ [RainbowMango]
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What type of PR is this? /kind documentation
What this PR does / why we need it: This PR updates the release notes for the coming patch releases: v1.7.4, v1.8.3, v1.9.1.
Which issue(s) this PR fixes: Fixes #none
Special notes for your reviewer:
Does this PR introduce a user-facing change?: