chore(deps): update postgres docker tag to v18.1 (#1170)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/test.yml

@@ -20,7 +20,7 @@ jobs:
         ports:
         - 6379:6379
       postgres:
-        image: postgres:18.0-alpine@sha256:48c8ad3a7284b82be4482a52076d47d879fd6fb084a1cbfccbd551f9331b0e40
+        image: postgres:18.1-alpine@sha256:655a411a84c1d7af7a21473c2eda3d8d24d7a9ff38ca279c897871b34acc0ce1
         ports:
         - 5432:5432
         # needed because the postgres container does not provide a healthcheck