fix(error-handling): remove unused exception variable

Removed the unused exception variable from the error handling block during MediaWiki API request. This helps in reducing potential future linting errors and maintains cleaner code. No functional changes.

src/wikimore/app.py

@@ -437,7 +437,7 @@ def wiki_article(
             mediawiki_api_response = urllib.request.urlopen(mediawiki_api_request)
             mediawiki_api_data = json.loads(mediawiki_api_response.read().decode())
             app.licenses[base_url] = license = mediawiki_api_data["license"]
-        except Exception as e:
+        except Exception:
             license = None
 
     else: