fix: adds namelist flag `use_center_grid_points` to data_override to … #855

Job	Run time
build (--disable-openmp, --with-yaml)	14m 38s
build (--disable-openmp, --enable-test-input=/home/unit_tests_input)	10m 19s
build (--disable-setting-flags, --with-yaml)	14m 23s
build (--disable-setting-flags, --enable-test-input=/home/unit_tests_input)	11m 33s
build (--with-mpi=no, --with-yaml)	4m 7s
build (--disable-r8-default, --with-yaml)	14m 37s
build (--disable-r8-default, --enable-test-input=/home/unit_tests_input)	10m 20s
	1h 19m 57s

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