False positive due to non-minimal channel type

[morehouse]

Found a false positive while fuzzing LND:

Test case failed: invalid accept_channel for temporary_channel_id 0cdb006c68ca6c9d84f83bdc302b272f658ae589bd3481b3bd9fef4270a47420: invalid accept_channel: accept_channel channel_type does not match open_channel

The executor sent an open_channel with channel_type = [0x00]. LND responded with the same value minimally encoded: channel_type = []. The oracle flagged that they don't match.

Suggested fix

We should strip leading zeroes before comparing channel types here:

smite/smite/src/oracles/accept_channel.rs

Lines 157 to 160 in e3736ea

	// Check that the channel type matches the one in open_channel.
	if open_channel.tlvs.channel_type != accept_channel.tlvs.channel_type {
	return Err("accept_channel channel_type does not match open_channel".to_string());
	}