roachtest: Use rocksdb debug in inconsistency roachtest when poss…

…ible

Fixes cockroachdb#55931.
Fixes cockroachdb#56173.

The `cockroach debug pebble db set` command did not exist in earlier releases,
so we use `cockroach debug rocksdb put` instead.

pkg/cmd/roachtest/inconsistency.go

@@ -74,9 +74,14 @@ func runInconsistency(ctx context.Context, t *test, c *cluster) {
 	// 0x120408001000180020002800322a0a10000000000000000000000000000000001a1266616b65207472616e73616374696f6e20312a004a00
 	// 0x120408001000180020002800322a0a10000000000000000000000000000000001a1266616b65207472616e73616374696f6e20322a004a00
 
-	c.Run(ctx, c.Node(1), "./cockroach debug pebble db set {store-dir} "+
+	debugCmd := "pebble db set {store-dir}"
+	if !t.IsBuildVersion("v21.1.0") {
+		debugCmd = "rocksdb put --hex --db={store-dir}"
+	}
+	c.Run(ctx, c.Node(1), fmt.Sprintf("./cockroach debug %s "+
 		"hex:016b1202000174786e2d0000000000000000000000000000000000 "+
-		"hex:12040800100018002000280032280a10000000000000000000000000000000001a1066616b65207472616e73616374696f6e2a004a00")
+		"hex:12040800100018002000280032280a10000000000000000000000000000000001a1066616b65207472616e73616374696f6e2a004a00",
+		debugCmd))
 
 	m := newMonitor(ctx, c)
 	c.Start(ctx, t, nodes)