4 1/2 tablespoons flour
3/4 teaspoon kosher salt, divided
1/2 teaspoon freshly ground black pepper, divided
1 teaspoon herbes de Provence
4 slices bacon (1/4 lb.), chopped
1 1/2 pounds boned, skinned chicken thighs
2 tablespoons olive oil
1 1/2 cups peeled baby carrots
3 stalks celery
1 medium onion
1 1/3 cups Chardonnay
2 cups reduced-sodium chicken broth
1/2 cup lightly packed flat-leaf parsley sprigs
1/4 cup lightly packed fresh tarragon sprigs