[3.13] gh-110383: Clarify "non-integral" wording in pow() docs (GH-119688) (#120206)

(cherry picked from commit 6646a9da26d12fc54263b22dd2916a2f710f1db7)

Co-authored-by: Aditya Borikar <adityaborikar2@gmail.com>
1 file changed