Correctly deprecate auth policy (#1675)

* Mark authpolicy as internal.

* Add @beta tag

* Remove beta tag.

* Add deprecation note.

* Formatting.

Author: taeold

Diff for: src/v2/providers/https.ts

@@ -210,12 +210,12 @@ export interface CallableOptions<T = any> extends HttpsOptions {
   heartbeatSeconds?: number | null;
 
   /**
-   * @deprecated
-   *
-   * Callback for whether a request is authorized.
+   * (Deprecated) Callback for whether a request is authorized.
    *
    * Designed to allow reusable auth policies to be passed as an options object. Two built-in reusable policies exist:
    * isSignedIn and hasClaim.
+   *
+   * @deprecated
    */
   authPolicy?: (auth: AuthData | null, data: T) => boolean | Promise<boolean>;
 }