Merge remote-tracking branch 'origin/develop' into protocol-sequence-diagrams

docs/source/dev/README.rst

morph/grid/local/grid.nix

morph/lib/default.nix

morph/lib/hardware-vagrant.nix

morph/lib/hardware-virtual.nix

morph/lib/vagrant-guest.nix

...itoring/server/grafana-dashboards/resources-overview.json

nixos/modules/packages.nix

nixos/modules/spending.nix

nixos/pkgs/default.nix

nixos/pkgs/zkap-spending-service/default.nix

nixos/pkgs/zkap-spending-service/repo.json

nixos/system-tests.nix

nixos/tests/spending.nix

tools/default.nix

tools/update-gitlab-repo