[renovate] Update golangci/golangci-lint Docker tag to v1.64.8

This MR contains the following updates:

Package	Type	Update	Change
golangci/golangci-lint	image	minor	v1.63.4-alpine -> v1.64.8-alpine

Important

Release Notes retrieval for this MR were skipped because no github.com credentials were available. If you are self-hosted, please see this instruction.

---

Configuration

Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever MR is behind base branch, or you tick the rebase/retry checkbox.

Ignore: Close this MR and you won't be reminded about this update again.

---

• If you want to rebase/retry this MR, check this box

---

This MR has been generated by Renovate Bot.