BF(DOC): workaround for #10701 of sphinx in 5.1.0

[yarikoptic]

See sphinx-doc/sphinx#10701 for more information.
I have not checked if rendered docs are anyhow affected etc. I hope the issue
would get fixed asap since should affect lots of sphinx users

Fixes #6882

[codeclimate]

Analysis results are not available for those commits

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[codecov]

Codecov Report

Merging #6883 (c7ba04e) into maint (cefecae) will increase coverage by 0.30%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##            maint    #6883      +/-   ##
==========================================
+ Coverage   90.25%   90.56%   +0.30%     
==========================================
  Files         354      354              
  Lines       46113    46540     +427     
==========================================
+ Hits        41621    42150     +529     
+ Misses       4492     4390     -102     

Impacted Files	Coverage Δ
datalad/ui/utils.py	50.00% <0.00%> (-19.45%)	⬇️
datalad/metadata/extractors/tests/test_base.py	87.80% <0.00%> (-12.20%)	⬇️
datalad/support/archive_utils_patool.py	29.87% <0.00%> (-10.39%)	⬇️
datalad/local/tests/test_wtf.py	90.47% <0.00%> (-8.34%)	⬇️
datalad/api.py	86.66% <0.00%> (-8.08%)	⬇️
datalad/metadata/extractors/tests/test_xmp.py	92.59% <0.00%> (-7.41%)	⬇️
datalad/support/cookies.py	80.88% <0.00%> (-7.36%)	⬇️
datalad/core/local/tests/test_results.py	92.85% <0.00%> (-7.15%)	⬇️
datalad/downloaders/tests/test_http.py	87.76% <0.00%> (-6.59%)	⬇️
datalad/cli/main.py	76.00% <0.00%> (-6.00%)	⬇️
... and 59 more

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[yarikoptic]

uff -- why did I submit it against master? let's try to change base

[adswa]

Thanks for digging through this issue. I would be fine with such a patch, and the docs are happy again.

[yarikoptic]

coolio, thank you @adswa ! Let's merge and I will push a merge to master (edit: done in 1ccf796)