Update garde requirement from 0.14.0 to 0.15.0 (#1293)

Updates the requirements on [garde](https://github.com/jprochazk/garde) to permit the latest version.
- [Release notes](https://github.com/jprochazk/garde/releases)
- [Commits](https://github.com/jprochazk/garde/compare/[email protected]@0.15.0)

---
updated-dependencies:
- dependency-name: garde
  dependency-type: direct:production
...

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

examples/Cargo.toml

@@ -26,7 +26,7 @@ latest = ["k8s-openapi/latest"]
 [dev-dependencies]
 tokio-util = "0.7.0"
 assert-json-diff = "2.0.1"
-garde = { version = "0.14.0", default-features = false, features = ["derive"] }
+garde = { version = "0.15.0", default-features = false, features = ["derive"] }
 anyhow = "1.0.44"
 futures = "0.3.17"
 jsonpath_lib = "0.3.0"