Structural, magnetic, and superconducting properties of pulsed-laser-deposition-grown ${\text{La}}_{1.85}$${\text{Sr}}_{0.15}$${\text{CuO}}_{4}$/${\text{La}}_{2/3}$${\text{Ca}}_{1/3}$${\text{MnO}}_{3}$ superlattices on (001)-oriented ${\text{LaSrAlO}}_{4}$ substrates