[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

tests/unit/activation/test_powershell.py

@@ -10,7 +10,8 @@
 
 @pytest.mark.slow
 def test_powershell(activation_tester_class, activation_tester, monkeypatch):
-    monkeypatch.setenv('TERM', 'xterm')
+    monkeypatch.setenv("TERM", "xterm")
+
     class PowerShell(activation_tester_class):
         def __init__(self, session):
             cmd = "powershell.exe" if sys.platform == "win32" else "pwsh"