[pt-br] Update concepts/cluster-administration/system-metrics.md

[paulofponciano]

Description

Este PR traz a atualização da página https://kubernetes.io/pt-br/docs/concepts/cluster-administration/system-metrics/ em PT-BR para sync com a versão EN.

• Caminho da página EN no repositório: content/en/docs/concepts/cluster-administration/system-metrics.md
• Caminho da página PT-BR no repositório: content/pt-br/docs/concepts/cluster-administration/system-metrics.md

---

This PR brings the update of the page https://kubernetes.io/pt-br/docs/concepts/cluster-administration/system-metrics/ in PT-BR to sync with the EN version.

• Path of the EN page in the repository: content/en/docs/concepts/cluster-administration/system-metrics.md
• Path of the PT-BR page in the repository: content/pt-br/docs/concepts/cluster-administration/system-metrics.md

Issue

Closes: #52454

[k8s-ci-robot]

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[paulofponciano]

/cc @stormqueen1990