lightning-kmp 1.12.0

Original release notes

What's Changed

Use bitcoin-kmp 0.30.0 and secp256k1-kmp 0.23.0 by @sstone in https://github.com/ACINQ/lightning-kmp/pull/852
Use docker instead of testnet3 for some ElectrumMiniWallet tests by @sstone in https://github.com/ACINQ/lightning-kmp/pull/854
Follow BOLT1 handling for "no reply" pings: ignore, don't reply. by @rustyrussell in https://github.com/ACINQ/lightning-kmp/pull/855
Simple close workflow: use our closing_complete instead of local signing nonces by @sstone in https://github.com/ACINQ/lightning-kmp/pull/856
Fix edge case in availableBalanceForSend/Receive by @t-bast in https://github.com/ACINQ/lightning-kmp/pull/857
Use official splice messages by @t-bast in https://github.com/ACINQ/lightning-kmp/pull/768

@rustyrussell made their first contribution in https://github.com/ACINQ/lightning-kmp/pull/855

Full Changelog: https://github.com/ACINQ/lightning-kmp/compare/v1.11.5...v1.12.0