Update other inputs than nixpkgs in flake.lock

• Updated input 'devshell':
    'github:numtide/devshell/2c8e04e5c29299bec53c2e5a73da0f9afa8dabb5' (2024-04-15)
  → 'github:numtide/devshell/12e914740a25ea1891ec619bb53cf5e6ca922e40' (2024-04-19)
• Updated input 'flake-root':
    'github:srid/flake-root/d9a70d9c7a5fd7f3258ccf48da9335e9b47c3937' (2023-08-22)
  → 'github:srid/flake-root/bc748b93b86ee76e2032eecda33440ceb2532fcd' (2024-04-19)
• Updated input 'microvm':
    'github:astro/microvm.nix/a1341f7195e34d9bb88c12314cc3b0c4429f9b0a' (2024-04-15)
  → 'github:astro/microvm.nix/6a4f822a817180be03fcdceb654088d002c9ec5e' (2024-04-18)
• Updated input 'nixos-hardware':
    'github:NixOS/nixos-hardware/6f976e53752e5b9ab08f9a3b1b0b9c67815c9754' (2024-04-18)
  → 'github:NixOS/nixos-hardware/5d48925b815fd202781bfae8fb6f45c07112fdb2' (2024-04-19)

Signed-off-by: Mika Tammi <[email protected]>