chore(deps): Update dependency net.fabricmc:sponge-mixin to v0.13.1+mixin.0.8.5

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
net.fabricmc:sponge-mixin	0.12.5+mixin.0.8.5 -> 0.13.1+mixin.0.8.5

---

Configuration

📅 Schedule: Branch creation - "after 5pm on the 2nd day of the month" (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.

🔕 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 has been generated by Mend Renovate. View repository job log here.