Try to fix workflows.

Author: ppostma

.github/workflows/ci.yml

@@ -19,6 +19,8 @@ jobs:
       postgres:
         image: postgres:latest
         env:
+        env:
+          POSTGRES_DB: postgres
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres
         options: >-
@@ -30,9 +32,10 @@ jobs:
           - 5432:5432
     env:
       CI: true
-      PGHOST: 127.0.0.1
-      PGUSER: postgres
-      PGPASS: postgres
+      POSTGRES_HOST: localhost
+      POSTGRES_PORT: ${{ job.services.postgres.ports[5432] }}
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
     strategy:
       fail-fast: false
       matrix: