Bump pg in /backend in the prod-minor-updates group

Bumps the prod-minor-updates group in /backend with 1 update: [pg](https://github.com/brianc/node-postgres/tree/HEAD/packages/pg).


Updates `pg` from 8.17.2 to 8.18.0
- [Changelog](https://github.com/brianc/node-postgres/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brianc/node-postgres/commits/pg@8.18.0/packages/pg)

---
updated-dependencies:
- dependency-name: pg
  dependency-version: 8.18.0
  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

@@ -32,7 +32,7 @@
 		"objection": "3.1.5",
 		"otplib": "^12.0.1",
 		"path": "^0.12.7",
-		"pg": "^8.17.2",
+		"pg": "^8.18.0",
 		"proxy-agent": "^6.5.0",
 		"signale": "1.4.0",
 		"sqlite3": "^5.1.7",

backend/yarn.lock

@@ -2144,10 +2144,10 @@ pg-connection-string@2.6.2:
   resolved "https://registry.yarnpkg.com/pg-connection-string/-/pg-connection-string-2.6.2.tgz#713d82053de4e2bd166fab70cd4f26ad36aab475"
   integrity sha512-ch6OwaeaPYcova4kKZ15sbJ2hKb/VP48ZD2gE7i1J+L4MspCtBMAx8nMgz7bksc7IojCIIWuEhHibSMFH8m8oA==
 
-pg-connection-string@^2.10.1:
-  version "2.10.1"
-  resolved "https://registry.yarnpkg.com/pg-connection-string/-/pg-connection-string-2.10.1.tgz#34e0bf60333551ae1e76caf47cce633a5b2e4b70"
-  integrity sha512-iNzslsoeSH2/gmDDKiyMqF64DATUCWj3YJ0wP14kqcsf2TUklwimd+66yYojKwZCA7h2yRNLGug71hCBA2a4sw==
+pg-connection-string@^2.11.0:
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/pg-connection-string/-/pg-connection-string-2.11.0.tgz#5dca53ff595df33ba9db812e181b19909866d10b"
+  integrity sha512-kecgoJwhOpxYU21rZjULrmrBJ698U2RxXofKVzOn5UDj61BPj/qMb7diYUR1nLScCDbrztQFl1TaQZT0t1EtzQ==
 
 pg-int8@1.0.1:
   version "1.0.1"
@@ -2175,12 +2175,12 @@ pg-types@2.2.0:
     postgres-date "~1.0.4"
     postgres-interval "^1.1.0"
 
-pg@^8.17.2:
-  version "8.17.2"
-  resolved "https://registry.yarnpkg.com/pg/-/pg-8.17.2.tgz#8df8c039c36bb97016be276094fc4991e8683963"
-  integrity sha512-vjbKdiBJRqzcYw1fNU5KuHyYvdJ1qpcQg1CeBrHFqV1pWgHeVR6j/+kX0E1AAXfyuLUGY1ICrN2ELKA/z2HWzw==
+pg@^8.18.0:
+  version "8.18.0"
+  resolved "https://registry.yarnpkg.com/pg/-/pg-8.18.0.tgz#e9ee214206f5d9231240f1b82f22d2fa9de5cb75"
+  integrity sha512-xqrUDL1b9MbkydY/s+VZ6v+xiMUmOUk7SS9d/1kpyQxoJ6U9AO1oIJyUWVZojbfe5Cc/oluutcgFG4L9RDP1iQ==
   dependencies:
-    pg-connection-string "^2.10.1"
+    pg-connection-string "^2.11.0"
     pg-pool "^3.11.0"
     pg-protocol "^1.11.0"
     pg-types "2.2.0"