Bump pg from 8.14.1 to 8.15.6 (#102)

Bumps [pg](https://github.com/brianc/node-postgres/tree/HEAD/packages/pg) from 8.14.1 to 8.15.6.
- [Changelog](https://github.com/brianc/node-postgres/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brianc/node-postgres/commits/[email protected]/packages/pg)

---
updated-dependencies:
- dependency-name: pg
  dependency-version: 8.15.6
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package.json

@@ -16,7 +16,7 @@
         "lodash": "4.17.21",
         "minimist": ">=1.2.6",
         "mocha": "10.8.2",
-        "pg": "8.14.1",
+        "pg": "8.15.6",
         "pg-ka-fix": "1.0.0-rm-fix",
         "pgpass": "1.0.5",
         "regex": "^0.1.1",