Report timing info for stakes cache updates from txs (backport #20856) (#20884)

* Report timing info for stakes cache updates from txs (#20856)

(cherry picked from commit 735016661b)

# Conflicts:
#	runtime/src/bank.rs

* resolve conflicts

Co-authored-by: Justin Starry <justin@solana.com>

core/src/progress_map.rs

@@ -63,6 +63,11 @@ impl ReplaySlotStats {
             ("load_us", self.execute_timings.load_us, i64),
             ("execute_us", self.execute_timings.execute_us, i64),
             ("store_us", self.execute_timings.store_us, i64),
+            (
+                "update_stakes_cache_us",
+                self.execute_timings.update_stakes_cache_us,
+                i64
+            ),
             (
                 "total_batches_len",
                 self.execute_timings.total_batches_len,