Food Effect Study to Evaluate the Effect of a High Fat Meal on the Level of Nirmatrelvir (PF-07321332) in the Blood of Healthy Adult Participants. A Phase 1, Open-label, Randomized, Single Dose, 2-Sequence, 2-Period Crossover Study to Evaluate the Effect of High-Fat Meal on the Relative Bioavailability of PF-07321332 Boosted With Ritonavir in Healthy Adult Participants.