[3.13] gh-133413: Fix references to removed Request.has_data (GH-133414) (GH-133946)

The has_data() method of http.request.Request
was removed in version 3.4.
(cherry picked from commit 86c1d439e0ccbe6baeda69322f1f8c0e6a80464c)

Co-authored-by: ppaez <pp@pp.com.mx>