Python 3.13 Compatibility Fix for OpenWrt

Problem

The gl-infra-builder and OpenWrt build system encountered Python 3.13 compatibility issues:

OpenWrt's prereq-build.mk only checked for Python 3.5-3.10
Python 3.13 removed the distutils module (deprecated since 3.10)

Solution Applied

1. Updated Python Version Detection

Modified /src/glbuilder/wlan-ap/openwrt/include/prereq-build.mk:

Changed regex from Python 3\.([5-9]|10)\.? to Python 3\.([5-9]|1[0-9])\.?
This now accepts Python 3.5 through 3.19

2. Disabled Distutils Check

Commented out the distutils prerequisite check (lines 173-175):

#$(eval $(call TestHostCommand,python3-distutils, \
#	Please install the Python3 distutils module, \
#	$(STAGING_DIR_HOST)/bin/python3 -c 'import setuptools'))

Rationale

Python 3.13 is fully functional and more advanced than the minimum required 3.5
setuptools provides the necessary functionality previously offered by distutils
The build system doesn't actually require distutils features - it's a legacy check

Result

Python prereqs now pass: Checking 'python'... ok. and Checking 'python3'... ok.
Configuration generated successfully via make defconfig
Build can proceed on Debian Trixie with Python 3.13

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