Bump actions/checkout from 4.1.7 to 4.2.2 #5753

Job	Run time
rstcheck	27s
copyright_headers	17s
clang-format	20s
black	35s
cppcheck	7m 18s
forbidden_types	16s
flake8	24s
isort	11s
lychee_IGNORED	28s
mypy	34s
pydocstyle	22s
pylint	38s
unused_names	15s
vale	48s
build_macos (macos-latest, clang, openmp, mpi, python, gsl, ltdl, boost, hdf5, optimize, warning)	11m 35s
build_linux (ubuntu-22.04, gcc, boost, optimize, warning)	14m 23s
build_linux (ubuntu-22.04, gcc, openmp, python, gsl, ltdl, boost, optimize, warning)	18m 55s
build_linux (ubuntu-22.04, gcc, mpi, python, gsl, ltdl, boost, optimize, warning)	20m 5s
build_linux (ubuntu-22.04, gcc, openmp, mpi, python, gsl, ltdl, boost, hdf5, sionlib, libneurosim...	32m 36s
sphinx-rtd	3m 5s
sphinx-conda	0s
	1h 53m 32s

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