integrity: --skip-check support (#19598)

The fix iterates over requestedChecks (not the skip list) and excludes
   anything in the skip set. Before, it was iterating over skip entries
  and only keeping ones not found in the requested list — the exact     
  opposite of what's needed.

Author: AskAlexSharov

cmd/utils/app/snapshots_cmd.go

@@ -1116,19 +1116,17 @@ func doIntegrity(cliCtx *cli.Context) error {
 
 	skipChecks := cliCtx.String("skip-check")
 	if len(skipChecks) > 0 {
-		var finalChecks []integrity.Check
+		skipSet := map[integrity.Check]struct{}{}
 		for skipCheck := range strings.SplitSeq(skipChecks, ",") {
-			found := false
-			for _, chk := range requestedChecks {
-				if chk == integrity.Check(skipCheck) {
-					found = true
-					logger.Info("[integrity] skipping check", "check", chk)
-					break
-				}
-			}
-			if !found {
-				finalChecks = append(finalChecks, integrity.Check(skipCheck))
+			skipSet[integrity.Check(skipCheck)] = struct{}{}
+		}
+		var finalChecks []integrity.Check
+		for _, chk := range requestedChecks {
+			if _, skip := skipSet[chk]; skip {
+				logger.Info("[integrity] skipping check", "check", chk)
+				continue
 			}
+			finalChecks = append(finalChecks, chk)
 		}
 
 		requestedChecks = finalChecks