Update I2CTarget.c

Correction of the timeout value range needed to set the timeout to 'forever'.
The line 162 checks timeout for a value of 0 while the function definition defaults timeout to -1. In the current version of the code timeout is only checked for a value of 0 or in the 'else if' part for a value of > 0. So, values of <0 will not be taken in to account.  That is the reason of my modification.

Author: PaulskPt

shared-bindings/i2ctarget/I2CTarget.c

@@ -159,7 +159,7 @@ STATIC mp_obj_t i2ctarget_i2c_target_request(size_t n_args, const mp_obj_t *pos_
 
     bool forever = false;
     uint64_t timeout_end = 0;
-    if (timeout_ms == 0) {
+    if (timeout_ms <= 0) {
         forever = true;
     } else if (timeout_ms > 0) {
         timeout_end = common_hal_time_monotonic_ms() + timeout_ms;