Port over build system improvements from metatensor

[Luthaf]

There have been a bunch of build system and CI improvements in metatensor that we should port to rascaline as well

• Improve handling of developement version numbers metatensor#382 (Improve handling of git info in version number #348)

• Upgrade to codecov-action v4 metatensor#491 (Upgrade Github Action versions #346)

• Remove Python build-tests from CI metatensor#497

• Generate and use a lockfile in metatensor-core metatensor#506 (Improved sdist generation, and packaging of C++ sources #350)

• Don't check patch torch version when loading from CMake metatensor#527 (Build torch wheels on CI #352)

• Improve sdist generation metatensor#540 (Improved sdist generation, and packaging of C++ sources #350)

• Mark metatensor-torch wheels as python-independant metatensor#564 (Build torch wheels on CI #352)

• Build metatensor-torch for all supported torch versions metatensor#571 (Build torch wheels on CI #352)

• maybe Improve usage of metatensor in a cmake subdirectory metatensor#406