test(dashmate): cover rc image tags in migration spec

Author: thepastaclaw

packages/dashmate/test/unit/config/configFile/migrate3xTo4xRcImages.spec.js

@@ -25,9 +25,11 @@ import migrateConfigFileFactory from '../../../../src/config/configFile/migrateC
 describe('migration 4.0.0-rc.3: re-sync Drive ABCI & rs-dapi images (#3889)', () => {
   const STALE_DRIVE = 'dashpay/drive:3';
   const STALE_DRIVE_DEV = 'dashpay/drive:3-dev';
+  const STALE_DRIVE_RC = 'dashpay/drive:3-rc';
   const STALE_DRIVE_HOTFIX = 'dashpay/drive:3-hotfix';
   const STALE_RS_DAPI = 'dashpay/rs-dapi:3';
   const STALE_RS_DAPI_DEV = 'dashpay/rs-dapi:3-dev';
+  const STALE_RS_DAPI_RC = 'dashpay/rs-dapi:3-rc';
   const STALE_RS_DAPI_HOTFIX = 'dashpay/rs-dapi:3-hotfix';
   const CUSTOM_DRIVE = 'private-registry.internal/drive:patched-v3';
   const CUSTOM_RS_DAPI = 'my-org/rs-dapi:fork-3';
@@ -141,6 +143,7 @@ describe('migration 4.0.0-rc.3: re-sync Drive ABCI & rs-dapi images (#3889)', ()
   // an early oversight in the predicate missed it.
   [
     { label: 'dev-series', drive: STALE_DRIVE_DEV, rsDapi: STALE_RS_DAPI_DEV },
+    { label: 'rc-series', drive: STALE_DRIVE_RC, rsDapi: STALE_RS_DAPI_RC },
     { label: 'hotfix-series', drive: STALE_DRIVE_HOTFIX, rsDapi: STALE_RS_DAPI_HOTFIX },
   ].forEach(({ label, drive, rsDapi }) => {
     it(`re-syncs the ${label} stale tags (${drive}, ${rsDapi})`, () => {