Use static port binding

Author: vgarvardt

.github/workflows/testing.yml

@@ -14,6 +14,8 @@ jobs:
     services:
       postgres:
         image: postgres:9.6
+        ports:
+          - 5432:5432
         env:
           POSTGRES_USER: test
           POSTGRES_PASSWORD: test
@@ -33,7 +35,7 @@ jobs:
         if: success()
         run: go test -timeout 60s -cover ./... -coverprofile=coverage.txt -covermode=atomic
         env:
-          PG_URI: "postgres://test:test@postgres:5432/test?sslmode=disable"
+          PG_URI: "postgres://test:test@localhost:5432/test?sslmode=disable"
 
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v1