fix(deps): Update dependency @types/pg to v8.20.0 (#873)

This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [@types/pg](https://redirect.github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/pg) ([source](https://redirect.github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/pg)) | [`8.18.0` → `8.20.0`](https://renovatebot.com/diffs/npm/@types%2fpg/8.18.0/8.20.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@types%2fpg/8.20.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@types%2fpg/8.18.0/8.20.0?slim=true) |

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Author: cloudquery-ci[bot]

package.json

@@ -41,7 +41,7 @@
     "@commitlint/cli": "20.5.0",
     "@commitlint/config-conventional": "20.5.0",
     "@types/node": "24.12.0",
-    "@types/pg": "8.18.0",
+    "@types/pg": "8.20.0",
     "@types/semver": "7.7.1",
     "@typescript-eslint/eslint-plugin": "8.57.2",
     "@typescript-eslint/parser": "8.57.2",