[libxslt] do not require default features of libxml2 (#35565)

ports/libxslt/vcpkg.json

@@ -1,13 +1,16 @@
 {
   "name": "libxslt",
   "version": "1.1.37",
-  "port-version": 2,
+  "port-version": 3,
   "description": "Libxslt is a XSLT library implemented in C for XSLT 1.0 and most of EXSLT",
   "homepage": "https://github.com/GNOME/libxslt",
   "license": null,
   "supports": "!uwp",
   "dependencies": [
-    "libxml2",
+    {
+      "name": "libxml2",
+      "default-features": false
+    },
     {
       "name": "vcpkg-cmake",
       "host": true

versions/baseline.json

@@ -5146,7 +5146,7 @@
     },
     "libxslt": {
       "baseline": "1.1.37",
-      "port-version": 2
+      "port-version": 3
     },
     "libxt": {
       "baseline": "1.2.1",

versions/l-/libxslt.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "8c34fe62d32f65f3a4b188a327eda7a4f134fea2",
+      "version": "1.1.37",
+      "port-version": 3
+    },
     {
       "git-tree": "b5013956f82220811954d9ed3b68e122c11e88a0",
       "version": "1.1.37",