Bump the prod-minor-updates group in /backend with 3 updates

Bumps the prod-minor-updates group in /backend with 3 updates: [liquidjs](https://github.com/harttle/liquidjs), [mysql2](https://github.com/sidorares/node-mysql2) and [pg](https://github.com/brianc/node-postgres/tree/HEAD/packages/pg).


Updates `liquidjs` from 10.24.0 to 10.25.0
- [Release notes](https://github.com/harttle/liquidjs/releases)
- [Changelog](https://github.com/harttle/liquidjs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/harttle/liquidjs/compare/v10.24.0...v10.25.0)

Updates `mysql2` from 3.18.2 to 3.19.0
- [Release notes](https://github.com/sidorares/node-mysql2/releases)
- [Changelog](https://github.com/sidorares/node-mysql2/blob/master/Changelog.md)
- [Commits](https://github.com/sidorares/node-mysql2/compare/v3.18.2...v3.19.0)

Updates `pg` from 8.19.0 to 8.20.0
- [Changelog](https://github.com/brianc/node-postgres/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brianc/node-postgres/commits/pg@8.20.0/packages/pg)

---
updated-dependencies:
- dependency-name: liquidjs
  dependency-version: 10.25.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: prod-minor-updates
- dependency-name: mysql2
  dependency-version: 3.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: prod-minor-updates
- dependency-name: pg
  dependency-version: 8.20.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: prod-minor-updates
...

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

backend/package.json

@@ -26,15 +26,15 @@
 		"gravatar": "^1.8.2",
 		"jsonwebtoken": "^9.0.3",
 		"knex": "3.1.0",
-		"liquidjs": "10.24.0",
+		"liquidjs": "10.25.0",
 		"lodash": "^4.17.23",
 		"moment": "^2.30.1",
-		"mysql2": "^3.18.2",
+		"mysql2": "^3.19.0",
 		"node-rsa": "^1.1.1",
 		"objection": "3.1.5",
 		"otplib": "^13.3.0",
 		"path": "^0.12.7",
-		"pg": "^8.19.0",
+		"pg": "^8.20.0",
 		"proxy-agent": "^6.5.0",
 		"signale": "1.4.0",
 		"sqlite3": "^5.1.7",