build(deps): bump the backend-dependencies group with 2 updates

Bumps the backend-dependencies group with 2 updates: [clap](https://github.com/clap-rs/clap) and [once_cell](https://github.com/matklad/once_cell).


Updates `clap` from 4.5.27 to 4.5.28
- [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-v4.5.27...clap_complete-v4.5.28)

Updates `once_cell` from 1.20.2 to 1.20.3
- [Changelog](https://github.com/matklad/once_cell/blob/master/CHANGELOG.md)
- [Commits](matklad/once_cell@v1.20.2...v1.20.3)

---
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
...

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

Cargo.toml

@@ -15,14 +15,14 @@ anyhow = "1"
 async-trait = "0.1.86"
 axum = "0.8.1" # web framework
 axum-macros = "0.5.0"
-clap = { version = "4.5.27", features = ["derive"] } # command-line parser
+clap = { version = "4.5.28", features = ["derive"] } # command-line parser
 config = "0.15.7" # Layered configuration with strong support for 12-factor applications
 chrono = { version = "0.4.39", features = ["serde"] }
 dirs = "5.0.1" # provides platform-specific locations for storing user configuration
 http-body-util = "0.1.0"
 indicatif = "0.17.11" # prograss bars and spinners
 log = "0.4.25" # logging facade
-once_cell = "1.20.2"
+once_cell = "1.20.3"
 pid1 = "0.1.4"
 serde = { version = "1", features = ["derive"] }
 serde_with = "3.12.0"