FIX-#7143: Constructing a DataFrame from a Modin Series with tuple name should produce MultiIndex columns #15573

Job	Run time
execution-filter	6s
lint (flake8)	16s
lint (mypy)	2m 32s
Test API, headers and no-engine mode	1m 59s
Test HDK storage format, Python 3.9	21m 40s
test-asv-benchmarks	23s
test-clean-install-ubuntu	1m 59s
Test BaseOnPython execution, Python 3.9	15m 43s
test-ubuntu (engine python, python 3.9, group_1)	20m 2s
test-clean-install-windows	3m 4s
test-windows (engine python, python 3.9, group_1)	32m 10s
test experimental	8m 44s
test-internals	7m 33s
test-ubuntu (engine unidist ${{ matrix.unidist-backend }}, python ${{ matrix.python-version }})	0s
test-ubuntu-sanity (engine ray, python 3.9)	18m 3s
test-spreadsheet (engine ray, python 3.9)	2m 23s
test-ubuntu-sanity (engine dask, python 3.9)	39m 14s
test-spreadsheet (engine dask, python 3.9)	2m 17s
test-ubuntu-sanity (engine unidist, python 3.9)	14m 59s
test-windows-sanity (engine ray, python 3.9)	24m 50s
test-windows-sanity (engine dask, python 3.9)	33m 31s
test-windows-sanity (engine unidist, python 3.9)	27m 33s
merge-coverage-artifacts	4s
upload-coverage	39s
	4h 39m 44s

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