flake.lock: Update

Flake lock file updates:

• Updated input 'wezterm':
    'github:wez/wezterm/6f375e29a2c4d70b8b51956edd494693196c6692?dir=nix&narHash=sha256-2OPDEgUEh0B6OIcSWtBbkw/zFi8r2VfluLj7FebTaVA%3D' (2024-12-05)
  → 'github:wez/wezterm/d8f4cb3559c5cebf7d779eb63a90d37ecd6376a8?dir=nix&narHash=sha256-YOArk0EzLd2FmObtuptIXjPvkZd2yQiZXwKkp2DKbPk%3D' (2025-01-02)
• Updated input 'wezterm/harfbuzz':
    'github:harfbuzz/harfbuzz/63973005bc07aba599b47fdd4cf788647b601ccd?narHash=sha256-GdxcAPx5QyniSHPAN1ih28AD9JLUPR0ItqW9JEsl3pU%3D' (2024-03-29)
  → 'github:harfbuzz/harfbuzz/9c03576c49db6e7207d9bcdfe3abd170a809157f?narHash=sha256-2ieCf3ftNk851FZBDPVl%2B7QHWBqD729KiUxUyxi26Yg%3D' (2024-06-27)
• Updated input 'wezterm/libpng':
    'github:glennrp/libpng/8439534daa1d3a5705ba92e653eda9251246dd61?narHash=sha256-1%2BcRp0Ungme/OGfc9kGJbklYIWAFxk8Il1M%2BNV4KSgw%3D' (2019-02-04)
  → 'github:pnggroup/libpng/f5e92d76973a7a53f517579bc95d61483bf108c0?narHash=sha256-gBfHgGaqVYdmhWXoNKZzPyGzyw2rr3zp%2BDjWmfC41jk%3D' (2024-09-12)
• Updated input 'wezterm/rust-overlay':
    'github:oxalica/rust-overlay/ada8266712449c4c0e6ee6fcbc442b3c217c79e1?narHash=sha256-r0VyeJxy4O4CgTB/PNtfQft9fPfN1VuGvnZiCxDArvg%3D' (2024-10-21)
  → 'github:oxalica/rust-overlay/04d5f1836721461b256ec452883362c5edc5288e?narHash=sha256-tIl5p3ueaPw7T5T1UXkLc8ISMk6Y8CI/D/rd0msf73I%3D' (2025-01-02)
• Updated input 'wezterm/zlib':
    'github:madler/zlib/cacf7f1d4e3d44d871b605da3b647f07d718623f?narHash=sha256-j5b6aki1ztrzfCqu8y729sPar8GpyQWIrajdzpJC%2Bww%3D' (2017-01-15)
  → 'github:madler/zlib/51b7f2abdade71cd9bb0e7a373ef2610ec6f9daf?narHash=sha256-TkPLWSN5QcPlL9D0kc/yhH0/puE9bFND24aj5NVDKYs%3D' (2024-01-22)