ci: add -a flag and debug print for savedPOSTGRESHost

.gitea/workflows/backend-tests.yaml

@@ -60,7 +60,7 @@ jobs:
 
       - name: Test (all packages)
         working-directory: backend
-        run: go test -tags "test,dev" -count=1 -v -timeout 120s ./handlers/... ./auth/... ./mw/... ./internal/... ./db/...
+        run: go test -a -tags "test,dev" -count=1 -v -timeout 120s ./handlers/... ./auth/... ./mw/... ./internal/... ./db/...
         env:
           POSTGRES_HOST: postgres
           TEST_DB_HOST: postgres

backend/db/db_test.go

@@ -114,6 +114,7 @@ func TestConcurrentQueries(t *testing.T) {
 	closePool()
 	resetEnv()
 
+	t.Logf("savedPOSTGRESHost=%q POSTGRES_HOST=%q", savedPOSTGRESHost, os.Getenv("POSTGRES_HOST"))
 	err := Connect()
 	if err != nil {
 		t.Fatalf("Connect() failed: %v", err)