Bump kube-runtime from 0.75.0 to 0.76.0 in /cmd/pinniped-proxy

Bumps [kube-runtime](https://github.com/kube-rs/kube) from 0.75.0 to 0.76.0.
- [Release notes](https://github.com/kube-rs/kube/releases)
- [Changelog](https://github.com/kube-rs/kube/blob/main/CHANGELOG.md)
- [Commits](kube-rs/kube@0.75.0...0.76.0)

---
updated-dependencies:
- dependency-name: kube-runtime
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

cmd/pinniped-proxy/Cargo.toml

@@ -20,7 +20,7 @@ hyper = { version = "0.14", features = ["server"] }
 hyper-tls = "0.5"
 kube = { version = "0.75.0" }
 kube-derive = { version = "0.75.0"}
-kube-runtime = "0.75.0"
+kube-runtime = "0.76.0"
 k8s-openapi = { version = "0.16.0", default-features = false}
 log = "0.4"
 native-tls = "0.2"