chore(deps): update postgres docker tag to v18

Author: renovate[bot]

.github/workflows/build-and-test-on-pr.yml

@@ -34,7 +34,7 @@ jobs:
         shard: [1, 2, 3, 4, 5]
     services:
       postgres:
-        image: postgres:16.0
+        image: postgres:18.1
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: test123

.github/workflows/build-test-publish-on-push.yml

@@ -42,7 +42,7 @@ jobs:
         shard: [ 1, 2, 3, 4, 5 ]
     services:
       postgres:
-        image: postgres:16.0
+        image: postgres:18.1
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: test123