[chore] [receiver/prometheus] fix flaky TestScopeInfoScopeAttributes …

…unit test (#26240)

**Description:**

Fixes
#26123

It sorts scopes before checking them.

receiver/prometheusreceiver/metrics_receiver_labels_test.go

@@ -767,16 +767,19 @@ func verifyMultipleScopes(t *testing.T, td *testData, rms []pmetric.ResourceMetr
 	require.Greater(t, len(rms), 0, "At least one resource metric should be present")
 
 	sms := rms[0].ScopeMetrics()
-	require.Equal(t, sms.Len(), 3, "At two scope metrics should be present")
+	require.Equal(t, sms.Len(), 3, "Three scope metrics should be present")
+	sms.Sort(func(a, b pmetric.ScopeMetrics) bool {
+		return a.Scope().Name() < b.Scope().Name()
+	})
 	require.Equal(t, sms.At(0).Scope().Name(), "fake.scope.name")
 	require.Equal(t, sms.At(0).Scope().Version(), "v0.1.0")
 	require.Equal(t, sms.At(0).Scope().Attributes().Len(), 0)
-	require.Equal(t, sms.At(1).Scope().Name(), "scope.with.attributes")
-	require.Equal(t, sms.At(1).Scope().Version(), "v1.5.0")
-	require.Equal(t, sms.At(1).Scope().Attributes().Len(), 1)
-	scopeAttrVal, found := sms.At(1).Scope().Attributes().Get("animal")
+	require.Equal(t, sms.At(1).Scope().Name(), "otelcol/prometheusreceiver")
+	require.Equal(t, sms.At(1).Scope().Attributes().Len(), 0)
+	require.Equal(t, sms.At(2).Scope().Name(), "scope.with.attributes")
+	require.Equal(t, sms.At(2).Scope().Version(), "v1.5.0")
+	require.Equal(t, sms.At(2).Scope().Attributes().Len(), 1)
+	scopeAttrVal, found := sms.At(2).Scope().Attributes().Get("animal")
 	require.True(t, found)
 	require.Equal(t, scopeAttrVal.Str(), "bear")
-	require.Equal(t, sms.At(2).Scope().Name(), "otelcol/prometheusreceiver")
-	require.Equal(t, sms.At(2).Scope().Attributes().Len(), 0)
 }