Bump version to 0.7.0; update README; run `fmt` and `clippy`

Update to Rust edition 2024; bump version to 0.6.8

Also:
* minor dependency updates
* address `cargo clippy` findings
* run `cargo +nightly fmt`

Update dependencies; bump version to 0.6.7

fix truncation between char boundaries in verbose mode; bump version …

…to 0.6.6

Add `--verbose` flag and use it with `scan`; bump version to 0.6.5

Various dependency updates

Bump version to 0.6.3

Switch from json to serde_json; bump version to 0.6.2

Bump vesion to 0.6.1

update Github workflow