mirage/mirage: PR #1625: Format, upgrade to ocamlformat.0.28.1

@930aa2e

Stages:

• 🟡 x86_64-debian-13-4.14
• ✔️ arm64-debian-13-4.14 (4m19s)
• 🟡 x86_64-debian-13-5.3
• ✔️ arm64-debian-13-5.3 (5m15s)
• 🟡 x86_64-debian-13-5.4
• ❌ arm64-debian-13-5.4 (5m50s)

History:

• 21/11/2025 12:01 ❌ @930aa2e (7m22s)