[xxxDRAFTxxx]r_elease of v18.0.7

[shlomi-noach]

EDIT this was a mistake and reverted/overwritten.

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Includes the release notes and release commit for the v18.0.7 release. Once this PR is merged, we will be able to tag v18.0.7 on the merge commit.

---

Note: manually generated by this command:

go run ./go/tools/release-notes/release_notes.go --version v18.0.7
go run ./go/tools/releases/releases.go

[vitess-bot]

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