Fix alpha entry point translation ref re-exports to use @alpha instead of @public

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Made-with: Cursor

plugins/kubernetes/report-alpha.api.md

@@ -240,7 +240,7 @@ const _default: OverridableFrontendPlugin<
 >;
 export default _default;
 
-// @public @deprecated (undocumented)
+// @alpha @deprecated (undocumented)
 export const kubernetesTranslationRef: TranslationRef<
   'kubernetes',
   {

plugins/kubernetes/src/alpha/index.ts

@@ -16,7 +16,7 @@
 import { kubernetesTranslationRef as _kubernetesTranslationRef } from './translation';
 
 /**
- * @public
+ * @alpha
  * @deprecated Import from `@backstage/plugin-kubernetes` instead.
  */
 export const kubernetesTranslationRef = _kubernetesTranslationRef;