XCM v3 Upgrade plus Runtime Upgrade 1.25.6

Inspected with npx @acala-network/chopsticks@latest dry-run --endpoint=wss://api.interlay.io/parachain --preimage=0x0302085502ca65d25300f1f4e150dacfe9442eef91715cd03c2f0f89daf19ad2b3c2d0a046005b050103000000 --open which shows:

Release published here: https://github.com/interlay/interbtc/tree/refs/heads/interbtc-v1.25
Code changes for this release: https://github.com/interlay/interbtc/pull/1249/files

We recommend fast-track by the TC.