chore(deps): update postgres docker tag to v18 (major)

Author: renovate[bot]

.github/workflows/build.yml

@@ -139,7 +139,7 @@ jobs:
         node: [16, 18, 20, 22]
     services:
       postgres:
-        image: postgres:16@sha256:f554b7e953b6fc0f72fe2b34e34f935f7ecc4f5bab9d1006467b30bfc6fc7ea1
+        image: postgres:18@sha256:7499fa0ed6b106d3b513fe792d673f1b496a539a541674fdcd9539c13c6427f3
         env:
           POSTGRES_USER: ${{ vars.POSTGRES_USER }}
           POSTGRES_PASSWORD: ${{ vars.POSTGRES_PASSWORD }}