[release-1.21] pkg/common/utils.go: update regionalLocationFmt for Europe with 10+ regions#2180

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k8s-infra-cherrypick-robot:cherry-pick-2117-to-release-1.21k8s-infra-cherrypick-robot/gcp-compute-persistent-disk-csi-driver:cherry-pick-2117-to-release-1.21Copy head branch name to clipboard