test: temporarily skip test_to_mermaid_image integration test (#9121)

Author: anakin87

test/core/pipeline/test_draw.py

@@ -12,7 +12,7 @@
 from haystack.testing.sample_components import AddFixedValue, Double
 
 
-@pytest.mark.flaky(reruns=5, reruns_delay=5)
+@pytest.mark.skip(reason="Temporarily skipped due to mermaid.ink issues")
 @pytest.mark.integration
 def test_to_mermaid_image():
     pipe = Pipeline()