chore(deps): bump google/cloud-sdk from 473.0.0-alpine to 474.0.0-alp…

…ine in /support (#6004)

chore(deps): bump google/cloud-sdk in /support

Bumps google/cloud-sdk from 473.0.0-alpine to 474.0.0-alpine.

---
updated-dependencies:
- dependency-name: google/cloud-sdk
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

support/alpine.Dockerfile

@@ -100,7 +100,7 @@ COPY --chown=$USER:root --from=aws-builder /usr/bin/aws-iam-authenticator /usr/b
 #
 # gcloud base
 #
-FROM google/cloud-sdk:473.0.0-alpine@sha256:dbe2f58ea92337bd68edb9c42298e84f104d224469c308ff9c67d5e28aac3527 as gcloud-base
+FROM google/cloud-sdk:474.0.0-alpine@sha256:b78e8847e791485838ee342031f1619bf0bcac786e3ae8c6bbfb8770f03149e1 as gcloud-base
 
 RUN gcloud components install kubectl gke-gcloud-auth-plugin --quiet