Phone number needs to be decoded in fle_decrypt_data.py

Hi, the sample to decrypt will not work as once decrypted the PhoneDecrypted is in bytes. We need to use PhoneDecrypted.decode() to convert it in a string and properly display it

Open fle_decrypt_data.py and inspect how PhoneDecrypted is displayed after decryption. Run the sample to reproduce the bytes output, then verify that the phone number is displayed as text rather than bytes.

Written by the indexing model from the issue text.