git: openjdk/jfx22u: master: 8332539: Update libxml2 to 2.12.7

[Hima Bindu Meda]

Changeset: f0c3e88a
Author:    Hima Bindu Meda <hmeda at openjdk.org>
Date:      2024-05-31 05:26:04 +0000
URL:       https://git.openjdk.org/jfx22u/commit/f0c3e88a8b26522836bb731800fa5daa9e41b293

8332539: Update libxml2 to 2.12.7

Backport-of: dedcf1d236b5429dcf3c42f5fd1095b28d5da063

! modules/javafx.web/src/main/legal/libxml2.md
! modules/javafx.web/src/main/native/Source/ThirdParty/libxml/linux/config.h
! modules/javafx.web/src/main/native/Source/ThirdParty/libxml/linux/include/libxml/xmlversion.h
! modules/javafx.web/src/main/native/Source/ThirdParty/libxml/mac/config.h
! modules/javafx.web/src/main/native/Source/ThirdParty/libxml/mac/include/libxml/xmlversion.h
! modules/javafx.web/src/main/native/Source/ThirdParty/libxml/src/NEWS
! modules/javafx.web/src/main/native/Source/ThirdParty/libxml/src/configure.ac
! modules/javafx.web/src/main/native/Source/ThirdParty/libxml/src/xmlsave.c
! modules/javafx.web/src/main/native/Source/ThirdParty/libxml/win32/include/libxml/xmlversion.h