DOC: moved release note for #46087
xref #46592

I'm going to merge this before all tests complete, since this PR is for main only and want to follow-up quickly  with a PR for the release date of 1.4.2 (and move another release note xref https://github.com/pandas-dev/pandas/pull/46592#issuecomment-1086173499) which will conflict with this one
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