replace original variable name

service/telemetry/metrics_test.go

@@ -206,17 +206,17 @@ func getMetricsFromPrometheus(t *testing.T, endpoint string) map[string]*io_prom
 		Timeout: 10 * time.Second,
 	}
 	var (
-		req  *http.Request
-		err  error
-		resp *http.Response
+		req *http.Request
+		err error
+		rr  *http.Response
 	)
 	req, err = http.NewRequest(http.MethodGet, endpoint, nil)
 	require.NoError(t, err)
 
 	maxRetries := 5
 	for i := 0; i < maxRetries; i++ {
-		resp, err = client.Do(req)
-		if err == nil && resp.StatusCode == http.StatusOK {
+		rr, err = client.Do(req)
+		if err == nil && rr.StatusCode == http.StatusOK {
 			break
 		}
 
@@ -225,11 +225,11 @@ func getMetricsFromPrometheus(t *testing.T, endpoint string) map[string]*io_prom
 		}
 	}
 	require.NoError(t, err, "failed to get metrics from Prometheus after %d attempts", maxRetries)
-	require.Equal(t, http.StatusOK, resp.StatusCode, "unexpected status code after %d attempts", maxRetries)
-	defer resp.Body.Close()
+	require.Equal(t, http.StatusOK, rr.StatusCode, "unexpected status code after %d attempts", maxRetries)
+	defer rr.Body.Close()
 
 	var parser expfmt.TextParser
-	parsed, err := parser.TextToMetricFamilies(resp.Body)
+	parsed, err := parser.TextToMetricFamilies(rr.Body)
 	require.NoError(t, err)
 
 	return parsed