build(deps): bump the cargo-crates group across 1 directory with 2 updates

Updates the requirements on [cargo_metadata](https://github.com/oli-obk/cargo_metadata) and [public-api](https://github.com/cargo-public-api/cargo-public-api) to permit the latest version.

Updates `cargo_metadata` to 0.20.0
- [Release notes](https://github.com/oli-obk/cargo_metadata/releases)
- [Changelog](https://github.com/oli-obk/cargo_metadata/blob/main/CHANGELOG.md)
- [Commits](https://github.com/oli-obk/cargo_metadata/compare/0.20.0...0.20.0)

Updates `public-api` to 0.48.0
- [Release notes](https://github.com/cargo-public-api/cargo-public-api/releases)
- [Changelog](https://github.com/cargo-public-api/cargo-public-api/blob/main/CHANGELOG.md)
- [Commits](https://github.com/cargo-public-api/cargo-public-api/compare/public-api-v0.48.0...public-api-v0.48.0)

---
updated-dependencies:
- dependency-name: cargo_metadata
  dependency-version: 0.20.0
  dependency-type: direct:production
  dependency-group: cargo-crates
- dependency-name: public-api
  dependency-version: 0.48.0
  dependency-type: direct:production
  dependency-group: cargo-crates
...

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

Cargo.toml

@@ -67,7 +67,7 @@ base64 = { version = "0.22.1", default-features = false }
 bindgen = { version = "0.72", default-features = false }
 bitflags = { version = "2.2.1", default-features = false }
 bytes = { version = "1", default-features = false }
-cargo_metadata = { version = "0.20.0", default-features = false }
+cargo_metadata = { version = "0.21.0", default-features = false }
 clap = { version = "4", default-features = false }
 const-assert = { version = "1.0.1", default-features = false }
 dialoguer = { version = "0.11", default-features = false }
@@ -89,7 +89,7 @@ once_cell = { version = "1.20.1", default-features = false }
 proc-macro2 = { version = "1", default-features = false }
 proc-macro2-diagnostics = { version = "0.10.1", default-features = false }
 procfs = { version = "0.17.0", default-features = false }
-public-api = { version = "0.48.0", default-features = false }
+public-api = { version = "0.49.0", default-features = false }
 quote = { version = "1", default-features = false }
 rand = { version = "0.9", default-features = false }
 rbpf = { version = "0.3.0", default-features = false }