add NEWS note for #22921

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branch : 3.4
extra : source : 40f9e91f362658d478e9aa8533698b4fe32a542d
add context parameter to HTTPHandler (closes #22788)

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branch : 3.4
Issue #20351: Add examples for csv.DictReader and csv.DictWriter.

Patch by Charles-Axel Dein.

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branch : 3.4