Send back 'LABELS' as part of the options.

Although DETAILED_LABELS should cover this, this isn't actually covered until Change 387097.

Google-Bug-Id: b/299770837
Release-Notes: skip
Change-Id: I1c54f6250c3af1d7750e2fa39def1f7323d0cca6
diff --git a/polygerrit-ui/app/services/gr-rest-api/gr-rest-api-impl.ts b/polygerrit-ui/app/services/gr-rest-api/gr-rest-api-impl.ts
index 37e61b2..07cc1c6 100644
--- a/polygerrit-ui/app/services/gr-rest-api/gr-rest-api-impl.ts
+++ b/polygerrit-ui/app/services/gr-rest-api/gr-rest-api-impl.ts
@@ -1235,6 +1235,7 @@
       ListChangesOption.DETAILED_ACCOUNTS,
       ListChangesOption.DETAILED_LABELS,
       ListChangesOption.DOWNLOAD_COMMANDS,
+      ListChangesOption.LABELS,
       ListChangesOption.MESSAGES,
       ListChangesOption.SUBMITTABLE,
       ListChangesOption.WEB_LINKS,
@@ -1260,6 +1261,7 @@
       'DETAILED_LABELS',
       'DETAILED_ACCOUNTS',
       'DOWNLOAD_COMMANDS',
+      'LABELS',
       'MESSAGES',
       'SUBMITTABLE',
       'WEB_LINKS',