revert: fix(anchor): serial reads are now non-blocking

This reverts commit fc2ba5f8d1.

reason: making serail reads non-blocking caused serial data issues
because sometimes it would exit before actually seeing a newline

src/anchor_pkg/anchor_pkg/connector.py

@@ -123,7 +123,7 @@ class SerialConnector(Connector):
         self.mcu_name = mcu_name
 
         # if we fail at this point, it should crash because we've already tested the port
-        self.serial_interface = serial.Serial(self.port, BAUD_RATE, timeout=0)
+        self.serial_interface = serial.Serial(self.port, BAUD_RATE, timeout=1)
 
     def _find_ports(self) -> list[str]:
         """