Update MPI python unit tests for adjoint method #2450

Job	Run time
C++ tests (ubuntu-22.04, lightning_qubit)	8m 48s
Python tests (ubuntu-22.04, lightning_qubit)	6m 45s
C++ tests (OpenBLAS) (ubuntu-22.04, lightning_qubit)	5m 1s
Python tests with OpenBLAS (ubuntu-22.04, lightning_qubit)	6m 45s
Build and cache Kokkos / Set Kokkos builder matrix	1s
Build and cache Kokkos / Kokkos core (SERIAL)	2s
Build and cache Kokkos / Kokkos core (OPENMP)	2s
C++ tests (Kokkos) (ubuntu-22.04, lightning_kokkos, SERIAL, 4.0.01)	2m 57s
C++ tests (Kokkos) (ubuntu-22.04, lightning_kokkos, OPENMP, 4.0.01)	6m 58s
C++ tests (multiple backends) (ubuntu-22.04, SERIAL, 4.0.01)	5m 32s
Python tests with Kokkos (ubuntu-22.04, lightning_kokkos, SERIAL, 4.0.01)	7m 12s
C++ tests (multiple backends) (ubuntu-22.04, OPENMP, 4.0.01)	5m 53s
Python tests with Kokkos (ubuntu-22.04, lightning_kokkos, OPENMP, 4.0.01)	6m 4s
Python tests with Kokkos (ubuntu-22.04, all, SERIAL, 4.0.01)	10m 4s
Python tests with Kokkos (ubuntu-22.04, all, OPENMP, 4.0.01)	9m 13s
Upload coverage data to codecov	11s
Upload coverage data to codecov	6s
	1h 21m 34s

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