Ignore PRs with label kind/cherry-pick when --all is used

[luolanzone]

These PRs start with "Automated cherry pick of" are already included by default with original PRs. They should be ignored when --all is passed.

[tnqn]

These PRs start with "Automated cherry pick of" are already included by default with original PRs. They should be ignored when --all is passed.

I didn't get it. In which situation a cherry-pick PR and its original PR could be in the same release?

[luolanzone]

Hi @tnqn , I got below data locally when I tried to run ./hack/release/prepare-changelog.sh --release 1.12.1 --all. I didn't recall that these PRs started with Automated cherry pick were included before. Not sure if there is a github API change.

### Changed

- [ci][flexible-ipam] Use k8s 1.27.2 and containerd for e2e. ([#5116](https://github.com/antrea-io/antrea/pull/5116), [@gran-vmv])
- Fix incorrect FlowMod message passing in openflow client modifyFlows. ([#5125](https://github.com/antrea-io/antrea/pull/5125), [@Dyanngg])
- Fix Egress IP not advertised in some cases . ([#5127](https://github.com/antrea-io/antrea/pull/5127), [@tnqn])
...
...
### Unlabelled (Remove this section eventually)

- Fix ClickHouse service not found in FA e2e test. ([#5148](https://github.com/antrea-io/antrea/pull/5148), [@wsquan171])
- Automated cherry pick of #5116: Use k8s 1.27.2 and containerd for e2e. ([#5151](https://github.com/antrea-io/antrea/pull/5151), [@luolanzone])
- Automated cherry pick of #5125: Fix incorrect FlowMod message passing in openflow client. ([#5145](https://github.com/antrea-io/antrea/pull/5145), [@luolanzone])
- Automated cherry pick of #5127: Fix Egress IP not advertised in some cases. ([#5141](https://github.com/antrea-io/antrea/pull/5141), [@tnqn])
...

[tnqn]

I see. It's because #3789 added a step to search cherry-pick PRs and include their original PRs to "Changed" section. Then it makes sense to exclude them in "Unlabelled".

[tnqn]

LGTM

[tnqn]

/skip-all