Create a document that a release manager can follow to cut either a minor or patch release. See [this doc](https://github.com/kubernetes-sigs/gateway-api-inference-extension/blob/main/.github/ISSUE_TEMPLATE/new-release.md) as a reference. xref upcoming patch release: https://github.com/kgateway-dev/kgateway/issues/11406 cc: @sam-heilbron @lgadban
