chore(deps): update gcr.io/google.com/cloudsdktool/google-cloud-cli docker tag to v512 (#200)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Dockerfile

@@ -29,7 +29,7 @@ RUN apk add --update --no-cache ca-certificates
 ##    docker build --no-cache --target gcloud -t vela-kubernetes:gcloud .    ##
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-FROM gcr.io/google.com/cloudsdktool/google-cloud-cli:511.0.0-alpine@sha256:3748754a3baf63176b16b2d789caf3f485ded6f1587647f9655b2c04c899edf9 as gcloud
+FROM gcr.io/google.com/cloudsdktool/google-cloud-cli:512.0.0-alpine@sha256:f16707c13f8dc6190a4bf140705789d6e770dada9e35705064b259a7e243291b as gcloud
 
 RUN gcloud components install gke-gcloud-auth-plugin