audit: Fix merrs and derrs object dangling message (#18714)

merrs and derrs are empty when a dangling object is deleted. Fix the bug
and adds invalid-meta data for data blocks

cmd/utils.go

@@ -1273,3 +1273,17 @@ func stringsHasPrefixFold(s, prefix string) bool {
 func ptr[T any](a T) *T {
 	return &a
 }
+
+func max(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}