169385bb5ba0fe6ad3ed4fbbad431904582c7eb7 ci: change MSRV to 1.63.0 (Steve Myers)
Pull request description:
### Description
fixes #331
### Notes to the reviewers
We won't merge this PR until LDK merges lightningdevkit/rust-lightning#2681.
There are alot of clippy checks to fix at 1.63.0 so I left the clippy MSRV at 1.57.0 for now.
### Changelog notice
Changed
- MSRV is now 1.63.0 for bdk, chain, and bitcoind_rpc crates
### Checklists
#### All Submissions:
* [x] I've signed all my commits
* [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
* [x] I ran `cargo fmt` and `cargo clippy` before committing
ACKs for top commit:
evanlinjin:
ACK
169385bb5ba0fe6ad3ed4fbbad431904582c7eb7
Tree-SHA512: ad69038173b4f050b57f637fc06a4153cf76929992cfea77e3f25d1e66be102bd2f83a46401a7e3245e9cc54602210c95b75a578f18c5c8b55d1e7229e92197f