Add tags for etcd-benchmark jobs to support reporting metrics on perfdash

[kishen-v]

This PR adds tags to the job ci-etcd-benchmark-put-amd64 to allow the perf-dash parser to correctly name the boards on perf-dash.k8s.io

[serathius]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kishen-v, serathius

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[k8s-ci-robot]

@kishen-v: Updated the job-config configmap in namespace default at cluster test-infra-trusted using the following files:

• key etcd-benchmarks-periodic.yaml using file config/jobs/etcd/etcd-benchmarks-periodic.yaml

In response to this:

This PR adds tags to the job ci-etcd-benchmark-put-amd64 to allow the perf-dash parser to correctly name the boards on perf-dash.k8s.io

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