Add missing GitHub actions (#731)

Author: rlymbur

.github/workflows/validate-merge-queue-e2e-test.yaml

@@ -59,6 +59,8 @@ jobs:
           script: |
             core.exportVariable('ACTIONS_CACHE_URL', process.env['ACTIONS_CACHE_URL'])
             core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env['ACTIONS_RUNTIME_TOKEN'])
+            core.exportVariable('ACTIONS_RESULTS_URL', process.env['ACTIONS_RESULTS_URL'])
+            core.exportVariable('ACTIONS_CACHE_SERVICE_V2', process.env['ACTIONS_CACHE_SERVICE_V2'])
       - name: Build and push image
         run: |
           SKIP_BUILD_CHART=true scripts/release-controller.sh