chore(cubestore): Add CUBEJS_CUBESTORE_ROLLING_WINDOW_JOIN flag, unused

Author: srh

packages/cubejs-backend-shared/src/env.ts

@@ -1848,6 +1848,9 @@ const variables: Record<string, (...args: any) => any> = {
   cubeStoreNoHeartBeatTimeout: () => get('CUBEJS_CUBESTORE_NO_HEART_BEAT_TIMEOUT')
     .default('30')
     .asInt(),
+  cubeStoreRollingWindowJoin: () => get('CUBEJS_CUBESTORE_ROLLING_WINDOW_JOIN')
+    .default('false')
+    .asBoolStrict(),
 
   allowUngroupedWithoutPrimaryKey: () => get('CUBEJS_ALLOW_UNGROUPED_WITHOUT_PRIMARY_KEY')
     .default(get('CUBESQL_SQL_PUSH_DOWN').default('true').asString())