Fix @type annotations (#8882)

Without the braces only the first type was considered...

Author: Turbo87

app/models/api-token.js

@@ -5,11 +5,11 @@ export default class ApiToken extends Model {
   @attr token;
   @attr('date') created_at;
   @attr('date') last_used_at;
-  /** @type string[] | null */
+  /** @type {string[] | null} */
   @attr crate_scopes;
-  /** @type string[] | null */
+  /** @type {string[] | null} */
   @attr endpoint_scopes;
-  /** @type string | null */
+  /** @type {string | null} */
   @attr('date') expired_at;
 
   get isExpired() {

app/models/version.js

@@ -24,7 +24,7 @@ export default class Version extends Model {
 
   /**
    * The minimum supported Rust version of this crate version.
-   * @type string | null
+   * @type {string | null}
    */
   @attr rust_version;