build(deps): bump the backend-dependencies group with 3 updates

Bumps the backend-dependencies group with 3 updates: [clap](https://github.com/clap-rs/clap), [once_cell](https://github.com/matklad/once_cell) and [serde_with](https://github.com/jonasbb/serde_with).


Updates `clap` from 4.5.18 to 4.5.19
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](clap-rs/clap@clap_complete-v4.5.18...clap_complete-v4.5.19)

Updates `once_cell` from 1.20.1 to 1.20.2
- [Changelog](https://github.com/matklad/once_cell/blob/master/CHANGELOG.md)
- [Commits](matklad/once_cell@v1.20.1...v1.20.2)

Updates `serde_with` from 3.9.0 to 3.11.0
- [Release notes](https://github.com/jonasbb/serde_with/releases)
- [Commits](jonasbb/serde_with@v3.9.0...v3.11.0)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend-dependencies
- dependency-name: once_cell
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend-dependencies
- dependency-name: serde_with
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: backend-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -15,17 +15,17 @@ anyhow = "1"
 async-trait = "0.1.83"
 axum = "0.7.7" # web framework
 axum-macros = "0.4.2"
-clap = { version = "4.5.18", features = ["derive"] } # command-line parser
+clap = { version = "4.5.19", features = ["derive"] } # command-line parser
 config = "0.14.0" # Layered configuration with strong support for 12-factor applications
 chrono = { version = "0.4.38", features = ["serde"] }
 dirs = "5.0.1" # provides platform-specific locations for storing user configuration
 http-body-util = "0.1.0"
 indicatif = "0.17.8" # prograss bars and spinners
 log = "0.4.22" # logging facade
-once_cell = "1.20.1"
+once_cell = "1.20.2"
 pid1 = "0.1.1"
 serde = { version = "1", features = ["derive"] }
-serde_with = "3.9.0"
+serde_with = "3.11.0"
 serde_json = "1" # JSON serialization
 nonempty = { version = "0.10.0", features = ["serialize"] }
 valico = "4.0.0"