build(deps): bump go.etcd.io/etcd/client/pkg/v3 from 3.5.13 to 3.6.4

[dependabot]

Bumps go.etcd.io/etcd/client/pkg/v3 from 3.5.13 to 3.6.4.

Release notes

Sourced from go.etcd.io/etcd/client/pkg/v3's releases.

v3.6.4

Please check out CHANGELOG for a full list of changes. And make sure to read upgrade guide before upgrading etcd (there may be breaking changes).

For installation guides, please check out play.etcd.io and operating etcd. Latest support status for common architectures and operating systems can be found at supported platforms.

Linux

ETCD_VER=v3.6.4
choose either URL
GOOGLE_URL=https://storage.googleapis.com/etcd
GITHUB_URL=https://github.com/etcd-io/etcd/releases/download
DOWNLOAD_URL=${GOOGLE_URL}
rm -f /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gz
rm -rf /tmp/etcd-download-test && mkdir -p /tmp/etcd-download-test
curl -L ${DOWNLOAD_URL}/${ETCD_VER}/etcd-${ETCD_VER}-linux-amd64.tar.gz -o /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gz
tar xzvf /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gz -C /tmp/etcd-download-test --strip-components=1 --no-same-owner
rm -f /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gz
/tmp/etcd-download-test/etcd --version
/tmp/etcd-download-test/etcdctl version
/tmp/etcd-download-test/etcdutl version
start a local etcd server
/tmp/etcd-download-test/etcd
write,read to etcd
/tmp/etcd-download-test/etcdctl --endpoints=localhost:2379 put foo bar
/tmp/etcd-download-test/etcdctl --endpoints=localhost:2379 get foo

macOS (Darwin)

ETCD_VER=v3.6.4
choose either URL
GOOGLE_URL=https://storage.googleapis.com/etcd
GITHUB_URL=https://github.com/etcd-io/etcd/releases/download
DOWNLOAD_URL=${GOOGLE_URL}
rm -f /tmp/etcd-${ETCD_VER}-darwin-amd64.zip
rm -rf /tmp/etcd-download-test && mkdir -p /tmp/etcd-download-test
curl -L ${DOWNLOAD_URL}/${ETCD_VER}/etcd-${ETCD_VER}-darwin-amd64.zip -o /tmp/etcd-${ETCD_VER}-darwin-amd64.zip
unzip /tmp/etcd-${ETCD_VER}-darwin-amd64.zip -d /tmp && rm -f /tmp/etcd-${ETCD_VER}-darwin-amd64.zip
mv /tmp/etcd-${ETCD_VER}-darwin-amd64/* /tmp/etcd-download-test && rm -rf mv /tmp/etcd-${ETCD_VER}-darwin-amd64
</tr></table>

... (truncated)

Commits

• 5400cdc version: bump up to 3.6.4
• effaa79 Merge pull request #20387 from ahrtr/20250722_learner_3.6
• e5f4311 Check promotion against v2store when updating v2store
• e59bb1f Add an e2e test to reproduce the issue 20340
• 1ed440d version: bump up to 3.6.3
• e3a3365 Merge pull request #20370 from k8s-infra-cherrypick-robot/cherry-pick-20368-t...
• 0655761 Fix v2store check returning wrong result even there isn't any auth data
• 68ddc06 Merge pull request #20352 from k8s-infra-cherrypick-robot/cherry-pick-20328-t...
• ad00289 Updated help for --quota-backend-bytes
• fe698af Merge pull request #20330 from kishen-v/cherrypick-TestWatchRestore
• Additional commits viewable in compare view

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[tormath1]

@chewi Thanks for having a look to those PRs. I am sorry, I should have added a "on-hold" label here.

I did not merge yet this PR because I think it will break all the qemu tests that use the local etcd server (e.g Kubernetes tests) - see this for the "why": flatcar/scripts#2916

We still have some dependencies on etcd API version 2 and this etcd update drops the API version 2 support.

EDIT: Kubernetes tests are using the etcd provided by Flatcar so it's good.

EDIT: Triggered https://github.com/flatcar/scripts/actions/runs/17033532190/job/48280864306?pr=3187 to see if we have side effects

[tormath1]

@chewi everything looks green. Sorry for the false alarm here :)