Gt -> Gte in system table cleanup worker (#35999)

Noticing that sometimes the first entry is skipped. I suspect it's due
to multiple rows having the same creation time, and due to the cursor
ending up right on the boundary, one of the rows gets skipped
permanently.

GitOrigin-RevId: c1fe4ea759d5a03160c6b90a4bde93d3636d6e8c

Author: nipunn1313

crates/application/src/system_table_cleanup/mod.rs

@@ -307,7 +307,7 @@ impl<RT: Runtime> SystemTableCleanupWorker<RT> {
             // The semantics of the cursor mean that all documents <= cursor have been
             // deleted, but retention might not have run yet, so we skip over their
             // tombstones.
-            range.push(IndexRangeExpression::Gt(
+            range.push(IndexRangeExpression::Gte(
                 CREATION_TIME_FIELD_PATH.clone(),
                 f64::from(*cursor).into(),
             ));