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

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/6e14bbce7bea6c4efd7adfa88a40dac750d80100?narHash=sha256-pFSxgSZqZ3h%2B5Du0KvEL1ccDZBwu4zvOil1zzrPNb3c%3D' (2024-07-20)
  → 'github:nixos/nixpkgs/e36e9f57337d0ff0cf77aceb58af4c805472bfae?narHash=sha256-OpX0StkL8vpXyWOGUD6G%2BMA26wAXK6SpT94kLJXo6B4%3D' (2024-07-27)
• Updated input 'northwind':
    'github:juspay/services-flake/9a5e1e65c13ab7be48fa67a273e9fd009f111d14?dir=example/share-services/northwind&narHash=sha256-LFYE2Ez6Wfj4WYgZR7p%2BUMzqJveeGLqUTDD%2B/bTQvlI%3D' (2024-07-21)
  → 'github:juspay/services-flake/8a547f08687a71d9f01f87a10ec4c5618db6efc5?dir=example/share-services/northwind&narHash=sha256-iKJZFOwtBt09z/AAN/tZn6k8etGt3PQ%2BdIQAHX8Vzds%3D' (2024-07-28)
• Updated input 'northwind/nixpkgs':
    'github:nixos/nixpkgs/6e14bbce7bea6c4efd7adfa88a40dac750d80100?narHash=sha256-pFSxgSZqZ3h%2B5Du0KvEL1ccDZBwu4zvOil1zzrPNb3c%3D' (2024-07-20)
  → 'github:nixos/nixpkgs/e36e9f57337d0ff0cf77aceb58af4c805472bfae?narHash=sha256-OpX0StkL8vpXyWOGUD6G%2BMA26wAXK6SpT94kLJXo6B4%3D' (2024-07-27)
• Updated input 'northwind/services-flake':
    'github:juspay/services-flake/2d00d12985a9b239fb49115b76621593b759842d?narHash=sha256-7KAm0lv0l2YeD34UXT6sTsOXka9b93yay%2Bf9CpcuC10%3D' (2024-07-15)
  → 'github:juspay/services-flake/3e023c9df32dbd51b44db0cbad61aa1037bc87d3?narHash=sha256-dMNW8/9FsH0b49mBEiInJLz5s762Mzysa0rbLcT7n48%3D' (2024-07-21)
• Updated input 'services-flake':
    'github:juspay/services-flake/9a5e1e65c13ab7be48fa67a273e9fd009f111d14?narHash=sha256-LFYE2Ez6Wfj4WYgZR7p%2BUMzqJveeGLqUTDD%2B/bTQvlI%3D' (2024-07-21)
  → 'github:juspay/services-flake/8a547f08687a71d9f01f87a10ec4c5618db6efc5?narHash=sha256-iKJZFOwtBt09z/AAN/tZn6k8etGt3PQ%2BdIQAHX8Vzds%3D' (2024-07-28)