SACRAMENTO, Calif. — Gov. Gavin Newsom’s administration has compromised on long-sought rules that would protect indoor workers from extreme heat, saying tens of thousands of prison and jail employees — and prisoners — would have to wait for relief. The deal comes a month after the administration unexpectedly rejected sweeping heat standards for workers in sweltering warehouses, steamy kitchens, and other dangerously hot job sites. The rules had been years in the making, and a state worker safety board voted to adopt them March 21. But in a controversial move, the administration upended the pro…