refactor dask test units

[systemshift]

Pull Request Description

should close #1002.
reviews welcome while work still in progress.

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After creating the pull request: in order to pass the changelog_updated check you will need to update the "Future Release" section of docs/source/changelog.rst to include this pull request.

[codecov]

Codecov Report

Merging #1052 into main will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #1052   +/-   ##
=======================================
  Coverage   98.35%   98.35%           
=======================================
  Files         126      126           
  Lines       13039    13067   +28     
=======================================
+ Hits        12824    12852   +28     
  Misses        215      215           

Impacted Files	Coverage Δ
...utational_backend/test_calculate_feature_matrix.py	98.19% <100.00%> (+0.03%)	⬆️
featuretools/tests/synthesis/test_dfs_method.py	100.00% <100.00%> (ø)

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[rwedge]

test_calls_progress_callback in test_calculate_feature_matrix.py and test_dfs_method.py also could be split out

[systemshift]

test_calls_progress_callback in test_calculate_feature_matrix.py and test_dfs_method.py also could be split out

Test units pass on these two, but as xfail. If that is acceptable then the PR is ready to merge, if not, would like to know how to work around this one.

[rwedge]

the TODO: split out comment above test_cfm_returns_original_time_indexes

[rwedge]

Looks good