fixed support MSRV for 1.65.0

Co-authored-by: Nick Stevens <[email protected]>

Author: ohunter

src/linux.rs

@@ -306,7 +306,7 @@ impl<'a> I2CTransfer<'a> for LinuxI2CDevice {
             msg.addr = self.slave_address;
 
             let cur_msg_type = msg_type(msg.flags);
-            if prev_msg_type.is_some_and(|prev| prev == cur_msg_type) {
+            if prev_msg_type.map(|prev| prev == cur_msg_type).unwrap_or_default() {
                 msg.flags |= I2CMessageFlags::NO_START.bits();
             } else {
                 prev_msg_type = Some(cur_msg_type);