Update libxml2 to v2.14.0 and googletest to v1.16.0 (#2731)

Author: vrabaud

CHANGELOG.md

@@ -16,6 +16,8 @@ The changes are relative to the previous release, unless the baseline is specifi
 * Forbid encoding with AVIF_MATRIX_COEFFICIENTS_IDENTITY and
   AVIF_PIXEL_FORMAT_YUV400 to be AV1 spec compatible.
 * Ignore tmap items not present in `grpl` box
+* Update googletest.cmd/LocalGTest.cmake: v1.16.0
+* Update libxml2.cmd/LocalLibXml2.cmake: v2.14.0
 * Update libyuv.cmd: dc47c71b3 (1907)
 
 ## [1.2.1] - 2025-03-17

cmake/Modules/LocalGTest.cmake

@@ -1,4 +1,4 @@
-set(AVIF_GTEST_GIT_TAG v1.14.0)
+set(AVIF_GTEST_GIT_TAG v1.16.0)
 
 set(GTest_FOUND ON CACHE BOOL "")
 set(GTEST_INCLUDE_DIRS ${AVIF_SOURCE_DIR}/ext/googletest/googletest/include)

cmake/Modules/LocalLibXml2.cmake

@@ -1,4 +1,4 @@
-set(AVIF_LIBXML_GIT_TAG "v2.13.5")
+set(AVIF_LIBXML_GIT_TAG "v2.14.0")
 
 set(LIB_FILENAME "${AVIF_SOURCE_DIR}/ext/libxml2/install.libavif/lib/${AVIF_LIBRARY_PREFIX}xml2${CMAKE_STATIC_LIBRARY_SUFFIX}")
 if(EXISTS "${LIB_FILENAME}")

ext/googletest.cmd

@@ -7,7 +7,7 @@
 : # If you're running this on Windows, be sure you've already run this (from your VC2019 install dir):
 : #     "C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Auxiliary\Build\vcvars64.bat"
 
-git clone -b v1.14.0 --depth 1 https://github.com/google/googletest.git
+git clone -b v1.16.0 --depth 1 https://github.com/google/googletest.git
 
 : # The gtest_force_shared_crt option makes gtest link the Microsoft C runtime library (CRT) dynamically
 : # on Windows:

ext/libxml2.cmd

@@ -5,7 +5,7 @@
 
 : # libxml2 is released under the MIT License.
 
-git clone -b v2.13.5 --depth 1 https://github.com/GNOME/libxml2.git
+git clone -b v2.14.0 --depth 1 https://github.com/GNOME/libxml2.git
 
 cmake -G Ninja -S libxml2 -B libxml2/build.libavif/ -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX=libxml2/install.libavif \
     -DLIBXML2_WITH_PYTHON=OFF -DLIBXML2_WITH_ZLIB=OFF -DLIBXML2_WITH_LZMA=OFF