Merge pull request #8968 from pytest-dev/dependabot/pip/testing/plugins_integration/twisted-21.7.0

Author: nicoddemus

testing/plugins_integration/requirements.txt

@@ -11,5 +11,5 @@ pytest-rerunfailures==10.1
 pytest-sugar==0.9.4
 pytest-trio==0.7.0
 pytest-twisted==1.13.3
-twisted==21.2.0
+twisted==21.7.0
 pytest-xvfb==2.0.0