[3.10] Fix typo in whatsnew/3.10.rst (GH-26310)

[miss-islington]

(cherry picked from commit 3ad101b)

Co-authored-by: Tushar Sadhwani tushar.sadhwani000@gmail.com

[the-knights-who-say-ni]

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[miss-islington]

@tusharsadhwani and @iritkatriel: Status check is done, and it's a failure ❌ .

[miss-islington]

@tusharsadhwani and @iritkatriel: Status check is done, and it's a failure ❌ .

[miss-islington]

@tusharsadhwani and @iritkatriel: Status check is done, and it's a success ✅ .

[miss-islington]

@tusharsadhwani and @iritkatriel: Status check is done, and it's a success ✅ .

[miss-islington]

@tusharsadhwani and @iritkatriel: Status check is done, and it's a success ✅ .