deps: fix deprecated pkg_resources #7061

Job	Run time
pytest-ubuntu-py311-gcc11-noomp-base	50m 9s
pytest-ubuntu-py311-gcc11-noomp-adjoint	39m 36s
pytest-ubuntu-py312-gcc12-omp-base	1h 6m 52s
pytest-ubuntu-py312-gcc12-omp-adjoint	50m 46s
pytest-ubuntu-py39-gcc7-omp-base	51m 24s
pytest-ubuntu-py39-gcc7-omp-adjoint	39m 46s
pytest-ubuntu-py310-gcc10-noomp-base	50m 58s
pytest-ubuntu-py310-gcc10-noomp-adjoint	39m 9s
pytest-ubuntu-py312-gcc13-omp-base	1h 7m 9s
pytest-ubuntu-py312-gcc13-omp-adjoint	51m 13s
pytest-ubuntu-py39-gcc9-omp-base	53m 57s
pytest-ubuntu-py39-gcc9-omp-adjoint	39m 39s
pytest-osx-py312-clang-omp-base	42m 55s
pytest-docker-py39-gcc-omp-base	46m 1s
pytest-docker-py39-gcc-omp-adjoint	36m 47s
pytest-docker-py39-icx-omp-base	38m 7s
pytest-docker-py39-icx-omp-adjoint	36m 11s
	13h 20m 39s

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