Allow Mesh.volumes property for 1D and 2D RegularMesh #8368

Job	Run time
filter-changes	6s
Python 3.12 (omp=n, mpi=n, dagmc=n, libmesh=n, event=n	19m 22s
Python 3.14 (omp=n, mpi=n, dagmc=, libmesh=, event=	23m 47s
Python 3.12 (omp=y, mpi=y, dagmc=n, libmesh=n, event=n	38m 49s
Python 3.12 (omp=y, mpi=n, dagmc=n, libmesh=n, event=n	26m 55s
Python 3.12 (omp=y, mpi=y, dagmc=y, libmesh=, event=	43m 51s
Python 3.12 (omp=n, mpi=y, dagmc=n, libmesh=n, event=n	25m 19s
Python 3.12 (omp=y, mpi=n, dagmc=, libmesh=y, event=	42m 18s
Python 3.12 (omp=y, mpi=n, dagmc=, libmesh=, event=y	30m 5s
Python 3.14t (omp=n, mpi=n, dagmc=, libmesh=, event=	24m 18s
Python 3.12 (omp=y, mpi=y, dagmc=, libmesh=y, event=	46m 56s
Python 3.13 (omp=n, mpi=n, dagmc=, libmesh=, event=	19m 22s
coverage	5s
Check CI status	2s
	5h 41m 15s

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