Fix GRAPH.LIST & TDIGEST.QUANTILE tests

[dvora-h]

Pull Request check-list

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• Does $ tox pass with this change (including linting)?
• Do the CI tests pass with this change (enable it first in your forked repo and wait for the github action build to finish)?
• Is the new or changed code fully tested?
• Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?
• Is there an example added to the examples folder (if applicable)?
• Was the change added to CHANGES file?

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Description of change

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[codecov-commenter]

Codecov Report

Merging #2335 (776170f) into master (2cea637) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@ Coverage Diff @@ ## master #2335 +/- ## ========================================== - Coverage 92.21% 92.20% -0.02%  ========================================== Files 111 111 Lines 28751 28751 ========================================== - Hits 26513 26509 -4  - Misses 2238 2242 +4 

Impacted Files	Coverage Δ
tests/test_asyncio/test_bloom.py	99.57% <100.00%> (ø)
tests/test_asyncio/test_graph.py	99.22% <100.00%> (ø)
tests/test_bloom.py	99.60% <100.00%> (ø)
tests/test_graph.py	91.56% <100.00%> (ø)
tests/conftest.py	84.94% <0.00%> (-0.78%)	⬇️
tests/test_cluster.py	96.96% <0.00%> (-0.12%)	⬇️

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