Add virtual environment to git ignore (#5156)

GitHub Codespaces auto detects Pipfile and starts installing dependencies into .venv/

Signed-off-by: Joseph Petersen <[email protected]>

Author: jetersen

.gitignore

@@ -66,4 +66,7 @@ src/pip-delete-this-directory.txt
 .DS_Store
 
 # Codespaces / VSCode
-/.vscode/
+/.vscode/
+
+# Python virtual environment
+/.venv/