os/bluestore : Assigning a named variable to ceph::time_guard to prevent immediate destruction

Fixes: https://tracker.ceph.com/issues/70132

Signed-off-by: Jaya Prakash <[email protected]>

Author: Jayaprakash-ibm

src/os/bluestore/BlueStore.cc

@@ -13813,7 +13813,7 @@ int BlueStore::omap_iterate(
     if (ret == omap_iter_ret_t::STOP) {
       break;
     } else if (ret == omap_iter_ret_t::NEXT) {
-      ceph::time_guard<ceph::mono_clock>{next_lat_acc};
+      ceph::time_guard<ceph::mono_clock> measure_next{next_lat_acc};
       it->next();
     } else {
       ceph_abort();