Bump pg from 7.11.0 to 7.17.1

Bumps [pg](https://github.com/brianc/node-postgres) from 7.11.0 to 7.17.1.
- [Release notes](https://github.com/brianc/node-postgres/releases)
- [Changelog](https://github.com/brianc/node-postgres/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brianc/node-postgres/compare/v7.11.0...pg@7.17.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -48,7 +48,7 @@
     "mini-css-extract-plugin": "^0.7.0",
     "node-sass": "^4.11.0",
     "nodebrainz": "^2.1.1",
-    "pg": "^7.4.3",
+    "pg": "^7.17.1",
     "playmusic": "^2.3.0",
     "sass-loader": "^7.0.1",
     "sequelize": "^5.15.1",