build(deps): Bump google/cloud-sdk from 0f8392d to 4e47ec6 (#1728)

Bumps google/cloud-sdk from `0f8392d` to `4e47ec6`.

---
updated-dependencies:
- dependency-name: google/cloud-sdk
  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>

Dockerfile.pubsub-emulator

@@ -1,3 +1,3 @@
 # gcloud sdk for pubsub emulator with netcat added for the startup health check
-FROM google/cloud-sdk:448.0.0@sha256:0f8392d7e01e44597c30624a2a9a6126031f0bcda02ee258e29b75b5bb83c3d5
+FROM google/cloud-sdk:448.0.0@sha256:4e47ec63b2fb26a5a896e7992018f123791d5cf3fd64d633aa9335e291d436a4
 RUN apt-get install -y netcat