Bump pyupgrade from 3.21.1 to 3.21.2 in /requirements/partial (OpenSlides#3212)

Author: dependabot[bot]

requirements/partial/requirements_development.txt

@@ -10,7 +10,7 @@ pip-check==3.2.1
 pytest==9.0.1
 pytest-cov==7.0.0
 pytest-profiling==1.8.1
-pyupgrade==3.21.1
+pyupgrade==3.21.2
 pyyaml==6.0.3
 
 # typing