Actress Jessica Biel reportedly plans to keep her pop star husband Justin Timberlake on a short leash during his upcoming world tour, RadarOnline.com has learned. According to a sensational report, sources dished Biel will be cracking her whip to avoid a repeat of the SexyBack singer’s 2019 cheating scandal Suspicious Biel, 42, is allegedly slapping her spouse of 11 years with a slew of restrictions before he hits the road on April 29, according to tipsters who tattle The Sinner star has warned the 43-year-old to be on his best behavior — or else! An insider claimed the 7th Heaven alum doesn’t…