op-e2e: Modify wait to check before waiting

Avoids wasting time waiting when the condition is already met.

op-e2e/e2eutils/wait/waits.go

@@ -111,10 +111,7 @@ func For(ctx context.Context, rate time.Duration, cb func() (bool, error)) error
 	defer tick.Stop()
 
 	for {
-		select {
-		case <-ctx.Done():
-			return ctx.Err()
-		case <-tick.C:
+		// Perform the first check before any waiting.
 		done, err := cb()
 		if err != nil {
 			return err
@@ -122,6 +119,12 @@ func For(ctx context.Context, rate time.Duration, cb func() (bool, error)) error
 		if done {
 			return nil
 		}
+
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		case <-tick.C:
+			// Allow loop to continue for next retry
 		}
 	}
 }