The previous version was failing to configure due to
```
"Dependencies must be external dependencies"
```
on zlib
Fixed by https://github.com/mesonbuild/wrapdb/pull/865/files
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4890>
source_fallback_url = https://ftp.acc.umu.se/pub/gnome/sources/libxml2/2.10/libxml2-2.10.3.tar.xz
source_filename = libxml2-2.10.3.tar.xz
source_hash = 5d2cc3d78bec3dbe212a9d7fa629ada25a7da928af432c93060ff5c17ee28a9c
-patch_filename = libxml2_2.10.3-1_patch.zip
-patch_url = https://wrapdb.mesonbuild.com/v2/libxml2_2.10.3-1/get_patch
-patch_hash = 6ababcad7bc2e030d4238453060cf261fc3f8462d763196c1bb88dc8a852bcd2
-wrapdb_version = 2.10.3-1
+patch_filename = libxml2_2.10.3-4_patch.zip
+patch_url = https://wrapdb.mesonbuild.com/v2/libxml2_2.10.3-4/get_patch
+patch_hash = cc83c79d53cd7204311d14a4468831089cfbd1f309ddbdfec119a61116eb7d6b
+wrapdb_version = 2.10.3-4
[provide]
libxml-2.0 = libxml2_dep