chore(deps): update gcr.io/google.com/cloudsdktool/google-cloud-cli docker tag to v560

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:559.0.0-alpine@sha256:8bc187acee15fd16d076519448b22df9dd6f34a000a3fa67e4d22e10c573bb35 as gcloud
+FROM gcr.io/google.com/cloudsdktool/google-cloud-cli:560.0.0-alpine@sha256:40bca309cf52f3ca05746edf5cea8ae08a17d3169de8da801e3a0573162b33fd as gcloud
 
 RUN gcloud components install gke-gcloud-auth-plugin