Merge bitcoindevkit/bdk#2157: ci: automated update to rustc 1.94.1

0de9f011a81c15d250883ff6bdcd1ec05322e2bf ci: automated update to rustc 1.94.1 (Github Action)

Pull request description:

  Automated update to Github CI workflow `cont_integration.yml` by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action

ACKs for top commit:
  ValuedMammal:
    ACK 0de9f011a81c15d250883ff6bdcd1ec05322e2bf

Tree-SHA512: 118d67c1897d1967a8568fe1a39c3acdd27795c4a67dcc81d455f346f31b26cf1560365fa0df9b9d27f7a8f0edd617a612015e9fb2d7713f297babb27c5b4436