build: follow the chain onto the merged threshold tips
`2dcd4fb` -> `db15e59`. The previous commit's fix reached this tree as a side commit on each of the three nested repositories; this moves all of them onto the `threshold` branch tips that merged it -- secp256k1-kmp `9bcae25` -> `6c7b1e4`, and bitcoin-kmp and lightning-kmp with it. Bookkeeping in appearance only. The pins the previous commit named were rebased away upstream, so a later fetch would not have found them. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in: