[pt-br] Add reference/access-authn-authz/extensible-admission-controllers.md

[paulofponciano]

Description

Este PR traz a localização da página https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/ para PT-BR.

• Caminho da página EN no repositório: content/en/docs/reference/access-authn-authz/extensible-admission-controllers.md
• Caminho PT-BR proposto no repositório: content/pt-br/docs/reference/access-authn-authz/extensible-admission-controllers.md

/cc @stormqueen1990 @edsoncelio

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This PR brings the localization of the page https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/ to PT-BR.

• EN page path in the repository: content/en/docs/reference/access-authn-authz/extensible-admission-controllers.md
• Proposed PT-BR path in the repository: content/pt-br/docs/reference/access-authn-authz/extensible-admission-controllers.md

Issue

Closes: #54862

[k8s-ci-robot]

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Details

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• content/pt-br/OWNERS

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[paulofponciano]

🛑 DO NOT MERGE 🛑 UNTIL KUBERNETES 1.36 IS RELEASED

This page contains changes that are tracked through:

• [WIP] Official 1.36 Release Docs #54173

Target Date: 2026-22-04

Release deadlines: sig-release timeline

/hold

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