Update cargo_metadata requirement from 0.21.0 to 0.22.0 (#956)

Updates the requirements on [cargo_metadata](https://github.com/oli-obk/cargo_metadata) to permit the latest version.
- [Release notes](https://github.com/oli-obk/cargo_metadata/releases)
- [Changelog](https://github.com/oli-obk/cargo_metadata/blob/main/CHANGELOG.md)
- [Commits](oli-obk/cargo_metadata@0.21.0...0.22.0)

---
updated-dependencies:
- dependency-name: cargo_metadata
  dependency-version: 0.22.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

libcnb-package/Cargo.toml

@@ -15,7 +15,7 @@ include = ["src/**/*", "LICENSE", "README.md"]
 workspace = true
 
 [dependencies]
-cargo_metadata = "0.21.0"
+cargo_metadata = "0.22.0"
 ignore = "0.4.23"
 indoc = "2.0.6"
 libcnb-common.workspace = true

libcnb-proc-macros/Cargo.toml

@@ -17,7 +17,7 @@ proc-macro = true
 workspace = true
 
 [dependencies]
-cargo_metadata = "0.21.0"
+cargo_metadata = "0.22.0"
 fancy-regex = { version = "0.16.0", default-features = false, features = ["std"] }
 quote = "1.0.40"
 syn = { version = "2.0.104", features = ["full"] }