Update gcr.io/google.com/cloudsdktool/google-cloud-cli Docker tag to v551

Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>

Author: red-hat-konflux[bot]

Dockerfile.pubsub-emulator

@@ -1,3 +1,3 @@
 # gcloud sdk for pubsub emulator with netcat added for the startup health check
-FROM gcr.io/google.com/cloudsdktool/google-cloud-cli:534.0.0-emulators@sha256:1784d8f97d213e6712ca2a525d5cdfd1670812594f5359041a460c69235b3f9e
+FROM gcr.io/google.com/cloudsdktool/google-cloud-cli:551.0.0-emulators@sha256:21ff20f66b9ba934ea7f12da562a0b8decb6d3782c36d49fb1dce5727f9fe31c
 RUN apt-get update -y && apt-get install -y netcat-traditional