build(deps): bump rustyline from 15.0.0 to 16.0.0

Bumps [rustyline](https://github.com/kkawakam/rustyline) from 15.0.0 to 16.0.0.
- [Release notes](https://github.com/kkawakam/rustyline/releases)
- [Changelog](https://github.com/kkawakam/rustyline/blob/master/History.md)
- [Commits](kkawakam/rustyline@v15.0.0...v16.0.0)

---
updated-dependencies:
- dependency-name: rustyline
  dependency-version: 16.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -21,5 +21,5 @@ nostr-sdk = { workspace = true, features = ["all-nips", "lmdb", "tor"] }
 once_cell = { version = "1.21", default-features = false }
 prettytable-rs = "0.10"
 regex = "1.11.1"
-rustyline = { version = "15.0", default-features = false, features = ["with-file-history"] }
+rustyline = { version = "16.0", default-features = false, features = ["with-file-history"] }
 tokio = { workspace = true, features = ["full"] }