chore(deps): bump bitnami/kubectl in /test/container (argoproj#20024)

Bumps bitnami/kubectl from `27e5f50` to `da4a986`.

---
updated-dependencies:
- dependency-name: bitnami/kubectl
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

test/container/Dockerfile

@@ -12,7 +12,7 @@ FROM docker.io/library/golang:1.23@sha256:2fe82a3f3e006b4f2a316c6a21f62b66e1330a
 
 FROM docker.io/library/registry:2.8@sha256:ac0192b549007e22998eb74e8d8488dcfe70f1489520c3b144a6047ac5efbe90 as registry
 
-FROM docker.io/bitnami/kubectl:1.31@sha256:27e5f500a2de2ba249a159c4af0b075500ad8a1afaa59ba1edf09bf83c656fd4 as kubectl
+FROM docker.io/bitnami/kubectl:1.31@sha256:da4a9868e20d941636087cb8624a4bb441f5249d69e8f3d27e53c7d4d280a5f3 as kubectl
 
 FROM docker.io/library/ubuntu:24.04@sha256:3f85b7caad41a95462cf5b787d8a04604c8262cdcdf9a472b8c52ef83375fe15