resetTech method
Closes the connection to the tag and opens it again, which reselects it in the RF field.
The plugin reuses a connection across calls, and isConnected is a local flag: a
Mifare Classic sector authentication that fails halts the tag while the flag still
reads true, so every later command on that tag fails too. This is the only way out
short of tearing down the session. It deliberately discards sector authentication and
any timeout that was set.
Implementation
@override
Future<void> resetTech(String handle, AndroidTechPigeon tech) async {}