fix(deps): update dependency @actions/exec to v3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@actions/exec (source)	^1.1.1 → ^3.0.0

---

Release Notes

actions/toolkit (@​actions/exec)

v3.0.0

• Breaking change: Package is now ESM-only
  • CommonJS consumers must use dynamic import() instead of require()

v2.0.0

• Add support for Node 24 #​2110
• Bump @​actions/io dependency from ^1.0.1 to ^2.0.0

---

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 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.