Revert "doc: ci: Zephyr now requires Python 3.12 or higher"

This reverts commit 043bb58.

Note that  scripts/requirements-actions.txt might not be 100% the same
as what was pinned prior to the revert due to it being difficult to
restore previous versions while also accounting for the new dependencies
that were added in the meantime.

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

Author: kartben

cmake/modules/python.cmake

@@ -11,7 +11,7 @@ if (WIN32)
   set(ENV{PYTHONIOENCODING} "utf-8")
 endif()
 
-set(PYTHON_MINIMUM_REQUIRED 3.12)
+set(PYTHON_MINIMUM_REQUIRED 3.10)
 
 if(NOT DEFINED Python3_EXECUTABLE AND DEFINED WEST_PYTHON)
   set(Python3_EXECUTABLE "${WEST_PYTHON}")

doc/develop/getting_started/index.rst

@@ -62,7 +62,7 @@ The current minimum required version for the main dependencies are:
      - 3.20.5
 
    * - `Python <https://www.python.org/>`_
-     - 3.12
+     - 3.10
 
    * - `Devicetree compiler <https://www.devicetree.org/>`_
      - 1.4.6

doc/releases/migration-guide-4.2.rst

@@ -20,11 +20,6 @@ the :ref:`release notes<zephyr_4.2>`.
     :local:
     :depth: 2
 
-Common
-******
-
-* The minimum required Python version is now 3.12 (from 3.10).
-
 Build System
 ************