chore(deps): update go (main)

[cilium-renovate]

This PR contains the following updates:

Package	Type	Update	Change
docker.io/library/golang		digest	fd78f2f -> 51a7800
docker.io/library/golang	final	digest	5f5d61d -> 76aadd9
docker.io/library/golang	stage	digest	5f5d61d -> 76aadd9

---

Configuration

📅 Schedule: Branch creation - "on monday and friday" (UTC), Automerge - At any time (no schedule defined).

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

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

---

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

---

This PR has been generated by Renovate Bot.