Bump pytest-asyncio from 0.20.3 to 0.21.0 in /requirements (#17865)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

(cherry picked from commit 921a15c)

Author: dependabot[bot]

requirements/app/test.txt

@@ -3,7 +3,7 @@ pytest ==7.3.1
 pytest-timeout ==2.1.0
 pytest-cov ==4.0.0
 pytest-doctestplus >=0.9.0
-pytest-asyncio ==0.20.3
+pytest-asyncio ==0.21.0
 pytest-rerunfailures <=11.1.2
 playwright ==1.35.0
 httpx ==0.24.0