CI: Fix CI builds related to new pandas 1.0 compatibility

[jrbourbeau]

This PR fixes a couple of issues with the documentation CI build that I noticed over in #2060 which are related to the recent Pandas 1.0 release (see https://dev.azure.com/ibis-project/ibis/_build/results?buildId=1791&view=logs&j=8f09edc2-e3b7-52de-126a-0225c4f3efa1&t=78a72aec-b398-558e-7c0d-2d33604b9e53&l=129)

[xmnlab]

thanks for working on that @jrbourbeau !

for the Doc building maybe you can try to change pd.testing.makeDataFrame() to pd.makeDataFrame()

[jrbourbeau]

Thanks for reviewing @xmnlab! The doc build is passing now. I guess we can address the other CI builds in a different PR as part of the larger issue #2063

[xmnlab]

@jrbourbeau maybe before we move that forward would be good to skip the 2 tests are failing
but we are still discussing that #2063

[jrbourbeau]

The LinuxBuildConda job is failing, although I'm not sure why. Could I get a restart on that build to see if it consistently fails?

[xmnlab]

I reran that :)

[jrbourbeau]

Thanks @xmnlab. I had set strict=True on those two added xfails, which was causing test failures on older pandas version where the tests pass. I updated to use strict=False accordingly and CI is passing now

[xmnlab]

LGTM! thanks @jrbourbeau for working on that.

[xmnlab]

@jrbourbeau could you open a follow up issue for these 2 tests you added skip markers ? thanks!

[jrbourbeau]

xref #2065

[xmnlab]

ah .. just one more thing @jrbourbeau could you add a release note? https://github.com/ibis-project/ibis/blob/master/docs/source/release.rst

[xmnlab]

thanks @jrbourbeau !

[jrbourbeau]

Thanks for reviewing!