- Changed MSRV to v1.65.
  Discussed this with @dani-garcia, and we will support **N-2**.
  This is/will be the same as for the `time` crate we use.
  Also updated the wiki regarding this https://github.com/dani-garcia/vaultwarden/wiki/Building-binary
- Removed backtrace crate in favor of `std::backtrace` stable since v1.65
- Updated Rust to v1.67.1
- Updated all the crates
- Updated the GHA action versions
- Adjusted the GHA MSRV build to extract the MSRV from `Cargo.toml`

Improved sync speed by resolving the N+1 query issues.
Solves #1402 and Solves #1453

With this change there is just one query done to retreive all the
important data, and matching is done in-code/memory.

With a very large database the sync time went down about 3 times.

Also updated misc crates and Github Actions versions.

This is a rather large PR which updates the async branch to have all the
database methods as an async fn.

Some iter/map logic needed to be changed to a stream::iter().then(), but
besides that most changes were just adding async/await where needed.

This is a rather large PR which updates the async branch to have all the
database methods as an async fn.

Some iter/map logic needed to be changed to a stream::iter().then(), but
besides that most changes were just adding async/await where needed.