style: format code with Autopep8, Black, ClangFormat, dotnet-format, …

…Go fmt, Gofumpt, Google Java Format, isort, Ktlint, PHP CS Fixer, Prettier, RuboCop, Ruff Formatter, Rustfmt, Scalafmt, StandardJS, StandardRB, swift-format and Yapf

This commit fixes the style issues introduced in 4eb125a according to the output
from Autopep8, Black, ClangFormat, dotnet-format, Go fmt, Gofumpt, Google Java
Format, isort, Ktlint, PHP CS Fixer, Prettier, RuboCop, Ruff Formatter, Rustfmt,
Scalafmt, StandardJS, StandardRB, swift-format and Yapf.

Details: None

web/tests/test_web.py

@@ -1,13 +1,16 @@
 # web/tests/test_web.py
 import pytest
+
 from app import app
 
+
 @pytest.fixture
 def client():
-    app.config['TESTING'] = True
+    app.config["TESTING"] = True
     with app.test_client() as client:
         yield client
 
+
 def test_index(client):
-    response = client.get('/')
+    response = client.get("/")
     assert response.status_code == 200