Ensure libMesh::ReplicatedMesh is used for LibMesh tallies

[nuclearkevin]

Description

This PR implements a quick check in LibMesh::LibMesh(libMesh::MeshBase& input_mesh ...) to ensure that the input_mesh points to a libMesh::ReplicatedMesh instance, alongside explicitly instantiating a libMesh::ReplicatedMesh in LibMesh::set_mesh_pointer_from_filename(...) (suggested by @pshriwise while discussing #3206). This enforces the currently assumed behaviour that the entire mesh exists on all MPI ranks.

Checklist

• I have performed a self-review of my own code
• I have run clang-format (version 15) on any C++ source files (if applicable)
• I have followed the style guidelines for Python source files (if applicable)
• I have made corresponding changes to the documentation (if applicable)
• I have added tests that prove my fix is effective or that my feature works (if applicable)