libxslt: upgrade 1.1.38 -> 1.1.39

libxslt: upgrade 1.1.38 -> 1.1.39

Changelog:
===========
- extensions: Don't search imports for extension prefixes
- transform: Check maximum depth when processing default templates
- build: Add more missing includes
- python: Don't set deprecated global
- build: Add missing includes
- imports: Limit nesting depth
- extensions: Report top-level elements in xsltDebugDumpExtensions
- Add extern "C" { } block to xsltlocale.h
- python: Make it compatible with python3.12
- date: Fix check for localtime_s
- date: Fix check for gmtime_s
- pkg-config files include cflags for static builds
- Handle NOCONFIG case when setting locations from CMake target properties
- autotools: Make xslt-config executable
- tests: Structured error handler now passes a const xmlError
- python: Fix tests on MinGW
- fuzz: Fix xmlFuzzEntityLoader after recent libxml2 changes

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>