mirage/mirage-skeleton: PR #402: Upgrade h2 to 0.13.0 and change a bit the API from it

@44495c6

Stages:

• ❌ x86_64-debian-10-4.13 (14m27s)
• 🟡 arm64-debian-10-4.13

History:

• 11/09/2024 21:21 ✔️ @89fb841 (9m15s)
• 11/09/2024 18:16 ✔️ @a988679 (55m37s)
• 11/09/2024 16:56 ❌ @d32ca2c (1h17m)
• 11/09/2024 16:44 ❌ @adc808f (8m16s)
• 11/09/2024 16:20 ❌ @44495c6 (14m27s)
• 11/09/2024 16:04 ❌ @9166ab8 (8m14s)