doc: releases: migration: 4.4: Add shell_set_bypass update

Add an entry for the shell API change for shell_set_bypass.

Signed-off-by: Pieter De Gendt <[email protected]>

Author: pdgendt

doc/releases/migration-guide-4.4.rst

@@ -115,6 +115,12 @@ STM32
 
   * ``CONFIG_POWER_SUPPLY_EXTERNAL_SOURCE``
 
+Shell
+=====
+
+* The :c:func:`shell_set_bypass` now requires a user data pointer to be passed. And accordingly the
+  :c:type:`shell_bypass_cb_t` now has a user data argument. (:github:`100311`)
+
 Stepper
 =======