Update to latest aws-crt-python, which exposes PKCS#11 functionality (see Support PKCS#11 for mutual TLS on Unix platforms awslabs/aws-crt-python#323) Add pkcs11_pubsub.py sample, demonstrating an ...

Support PKCS#11 for mutual TLS on Unix platforms by graebm · Pull Request #259 · aws/aws-iot-device-sdk-python-v2