chore(docker): update docker.io/library/golang digest version

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
docker.io/library/golang	stage	digest	adee809 -> a7f2fc9

---

Configuration

📅 Schedule: Branch creation - "before 4am" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

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

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

---

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

---

This PR was generated by Mend Renovate. View the repository job log.