Adafruit CircuitPython ConnectionManager

Adafruit CircuitPython ConnectionManager (current version 3.1.7) provides a `urllib3.poolmanager`/`urllib3.connectionpool`-like interface for managing network sockets and connections, primarily on CircuitPython devices. It abstracts the underlying socket pool, making it easier to integrate with higher-level libraries like `adafruit-circuitpython-requests`. Releases occur periodically, often in response to bug fixes, dependency updates, or CPython compatibility improvements.