Update PyNN to 0.12.2, add libNeuroML

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!464

Update py-quantities package

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!485

nest: fix failing build of `nest~mpi`

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!474

fix(BSS2): build on JUSUF

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!481

The current 2024 stage compiler (gcc@12.3.0) reports a missing header and
fails.

fix openbabel build failure with gcc12

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!480

fix(py-ray): constrain to older bazel

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!479

I just hit https://github.com/ray-project/ray/issues/31504 when trying to build
ebrains on a unconstrained spack (0.20.x) → bazel 6.1.1 is too new for py-ray.

update Python client for Neuromorphic Computing platform

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!478

add latest NESTML release 7.0.0 to spack package

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!476

update py-viziphant to 0.4.0

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!468

arbor: change mpi dependency type to ("build", "run")

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!473