feat(KONFLUX-5451): Expose metrics for Performance alerts

[rh-rahulshetty]

This PR is a follow up on this task to expose new metrics for perf alerts related to the components ETCD, Kubernetes Job and Node Utilization.

Following new metrics are introduced as part of this PR:

• etcd_disk_wal_fsync_duration_seconds_bucket
• etcd_disk_backend_commit_duration_seconds_bucket
• etcd_server_proposals_failed_total
• etcd_network_peer_round_trip_time_seconds_bucket
• kube_job_spec_completions
• kube_job_status_succeeded
• kube_job_status_failed
• node_cpu_seconds_total {mode=idle}
• node_memory_MemTotal_bytes
• node_memory_MemAvailable_bytes

[rh-rahulshetty]

Hello @jhutar @mftb @pacho-rh,
Could you please help review this change associated with Konflux Prometheus metric rules for the perf alerts.

[mftb]

/lgtm
/approve

[pacho-rh]

/lgtm
/approve

[jhutar]

/lgtm

[jhutar]

/retest

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jhutar, mftb, pacho-rh, rh-rahulshetty

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• components/monitoring/OWNERS [mftb,pacho-rh]

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[mftb]

/retest

[rh-rahulshetty]

/retest

[mftb]

/retest