fix: add dataloader dependency and apply formatting

- Add dataloader@^2.2.2 dependency to indexer-agent
- Update yarn.lock with dataloader package resolution
- Apply prettier formatting to agent source files
- Resolves CI formatting check failures

Author: DaMandal0rian

packages/indexer-agent/package.json

@@ -34,6 +34,7 @@
     "@thi.ng/heaps": "^1.3.1",
     "axios": "0.26.1",
     "bs58": "5.0.0",
+    "dataloader": "2.2.2",
     "delay": "^5.0.0",
     "ethers": "5.7.0",
     "evt": "1.9.12",