gmsh: 4.2.3 -> 4.3.0 (#62420)

* gmsh: 4.2.3 -> 4.3.0

Semi-automatic update generated by
https://github.com/ryantm/nixpkgs-update tools. This update was made
based on information from
https://repology.org/metapackage/gmsh/versions

* gmsh: move cmake to nativeBuildInputs