ci: Apply PostgreSQL performance optimizations to GitHub Actions

Author: Turbo87

.github/workflows/ci.yml

@@ -153,6 +153,26 @@ jobs:
     needs: changed-files
     if: needs.changed-files.outputs.non-js == 'true'
 
+    services:
+      postgres:
+        image: postgres:16
+        env:
+          POSTGRES_PASSWORD: postgres
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+          -c fsync=off
+          -c wal_level=minimal
+          -c full_page_writes=off
+          -c checkpoint_timeout=10min
+          -c shared_buffers=256MB
+          -c synchronous_commit=off
+          -c max_wal_senders=0
+        ports:
+          - 5432:5432
+
     env:
       RUST_BACKTRACE: 1
       TEST_DATABASE_URL: postgres://postgres:postgres@localhost/postgres
@@ -171,10 +191,9 @@ jobs:
         with:
           save-if: ${{ github.ref == 'refs/heads/main' }}
 
-      # Update `pg_dump` to the same version as the running PostgreSQL server
+      # Install PostgreSQL 16 client tools to match the service version
+      # This ensures psql version matches PostgreSQL server for snapshot tests
       - run: sudo /usr/share/postgresql-common/pgdg/apt.postgresql.org.sh -v ${POSTGRES_VERSION} -i -p
-      - run: sudo systemctl start postgresql.service
-      - run: sudo -u postgres psql -c "ALTER USER postgres WITH PASSWORD 'postgres'"
 
       - run: cargo build --tests --workspace
       - run: cargo test --workspace