fix(ci): use port 5433 for test PostgreSQL to avoid conflict

Production PostgreSQL already uses port 5432 on the host. The CI
test database now maps to port 5433.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -49,7 +49,7 @@ jobs:
           POSTGRES_USER: test_user
           POSTGRES_PASSWORD: test_password
         ports:
-          - 5432:5432
+          - 5433:5432
         options: >-
           --health-cmd "pg_isready -U test_user -d wizamart_test"
           --health-interval 10s
@@ -57,8 +57,8 @@ jobs:
           --health-retries 5
 
     env:
-      TEST_DATABASE_URL: "postgresql://test_user:test_password@localhost:5432/wizamart_test"
-      DATABASE_URL: "postgresql://test_user:test_password@localhost:5432/wizamart_test"
+      TEST_DATABASE_URL: "postgresql://test_user:test_password@localhost:5433/wizamart_test"
+      DATABASE_URL: "postgresql://test_user:test_password@localhost:5433/wizamart_test"
 
     steps:
       - uses: actions/checkout@v4