fix(lint): Fix linting issues

tests/test_config.py

@@ -2,19 +2,22 @@
 
 import os
 
-vars: dict = {
+env_vars: dict = {
     "APP_VERSION": "dev",
     "WEBEX_API_KEY": "testing",
 }
 
 
-for var, value in vars.items():
+for var, value in env_vars.items():
     os.environ[var] = value
 
 # needs to be imported AFTER environment variables are set
-from app.config import config  # pragma: no cover  # noqa: E402
+from app.config import (
+    config,
+)  # pylint: disable=wrong-import-position # pragma: no cover  # noqa: E402
 
 
 def test_config() -> None:
-    assert config.webex_token == vars["WEBEX_API_KEY"]
-    assert config.version == vars["APP_VERSION"]
+    """Test the configuration settings."""
+    assert config.webex_token == env_vars["WEBEX_API_KEY"]
+    assert config.version == env_vars["APP_VERSION"]