[pt][editorial] Java API - Update link for specs reference

Fixes the broken anchor link in Portuguese Java API docs from
`#standard-attribute` to `#attribute` to match the spec changes.

This follows the same fix applied in #8287 (English and Japanese)
and #8291 (Chinese) but was missed for the Portuguese translation.

Co-authored-by: chalin <[email protected]>

Author: Copilot

content/pt/docs/languages/java/api.md

@@ -477,7 +477,7 @@ public class ProvidersAndScopes {
 
 [Attributes](https://www.javadoc.io/doc/io.opentelemetry/opentelemetry-api/latest/io/opentelemetry/api/common/Attributes.html)
 é um conjunto de pares chave-valor representando a
-[definição padrão de atributos](/docs/specs/otel/common/#standard-attribute).
+[definição padrão de atributos](/docs/specs/otel/common/#attribute).
 
 `Attributes` é um conceito recorrente na API do OpenTelemetry: