[WIP] lint a bit, update deps

vendor/github.com/cockroachdb/pebble/internal/cache/entry.go

@@ -4,6 +4,8 @@
 
 package cache
 
+import "sync/atomic"
+
 type entryType int8
 
 const (
@@ -56,7 +58,7 @@ type entry struct {
 	ptype entryType
 	// referenced is atomically set to indicate that this entry has been accessed
 	// since the last time one of the clock hands swept it.
-	referenced int32
+	referenced atomic.Bool
 	shard      *shard
 	// Reference count for the entry. The entry is freed when the reference count
 	// drops to zero.
@@ -137,9 +139,7 @@ func (e *entry) setValue(v *Value) {
 	}
 	old := e.val
 	e.val = v
-	if old != nil {
-		old.release()
-	}
+	old.release()
 }
 
 func (e *entry) peekValue() *Value {