chore(example): Update share-services/pgweb/flake.lock

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/4284c2b73c8bce4b46a6adf23e16d9e2ec8da4bb?narHash=sha256-i4vJL12/AdyuQuviMMd1Hk2tsGt02hDNhA0Zj1m16N8%3D' (2024-07-05)
  → 'github:nixos/nixpkgs/8b5a3d5a1d951344d683b442c0739010b80039db?narHash=sha256-po3TZO9kcZwzvkyMJKb0WCzzDtiHWD34XeRaX1lWXp0%3D' (2024-07-12)
• Updated input 'northwind':
    'github:juspay/services-flake/0b3b8c59c2c56965c53857c0578a7c02c2a3c108?dir=example/share-services/northwind&narHash=sha256-2zfs4Q4eaKLwHT5uNEUddqlinl2Nr9%2B6BF7p7AZeVq8%3D' (2024-07-07)
  → 'github:juspay/services-flake/632661f5124dcd243c69a88d39212f07f67b3ab8?dir=example/share-services/northwind&narHash=sha256-3y8ODlCbufPTnmqvu%2BrtTTHqmJjJhvy8BrDIAacccFU%3D' (2024-07-14)
• Updated input 'northwind/nixpkgs':
    'github:nixos/nixpkgs/4284c2b73c8bce4b46a6adf23e16d9e2ec8da4bb?narHash=sha256-i4vJL12/AdyuQuviMMd1Hk2tsGt02hDNhA0Zj1m16N8%3D' (2024-07-05)
  → 'github:nixos/nixpkgs/8b5a3d5a1d951344d683b442c0739010b80039db?narHash=sha256-po3TZO9kcZwzvkyMJKb0WCzzDtiHWD34XeRaX1lWXp0%3D' (2024-07-12)
• Updated input 'northwind/services-flake':
    'github:juspay/services-flake/b02b6c802548cb7814cd4d03098d1414c99652b9?narHash=sha256-vvVMtCXzCSlGnFV4pJlAsekCC72WRRM0Aa/tlkx4e4w%3D' (2024-07-06)
  → 'github:juspay/services-flake/340d1a94cc5770c9fd921371f5c642367dc2e4d0?narHash=sha256-sv6DbDQ0gYvGatAQTUeb2GR1IvIAmQxW5OXBLrBwEKc%3D' (2024-07-09)
• Updated input 'services-flake':
    'github:juspay/services-flake/0b3b8c59c2c56965c53857c0578a7c02c2a3c108?narHash=sha256-2zfs4Q4eaKLwHT5uNEUddqlinl2Nr9%2B6BF7p7AZeVq8%3D' (2024-07-07)
  → 'github:juspay/services-flake/632661f5124dcd243c69a88d39212f07f67b3ab8?narHash=sha256-3y8ODlCbufPTnmqvu%2BrtTTHqmJjJhvy8BrDIAacccFU%3D' (2024-07-14)