[expat] update to 2.7.4 (#49747)

ports/expat/portfile.cmake

@@ -4,7 +4,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO libexpat/libexpat
     REF "${REF}"
-    SHA512 34400f7dff0151a38c5ff7d73b65b57c7fdf648cf407ed94beddf2d11511b650c4ea16e417a15ebe1707456e7279210e929cc97a0caf7a1ff45bf1d07275e815
+    SHA512 0e157ce875ec993b4e495e0cd04979109c1f0f0dbfa707c113d9b4ed243c668fce20e5ef79ff8df2f30587cc182a0254794b2fb9bb53f938da608ace32903820
     HEAD_REF master
 )
 
@@ -34,7 +34,7 @@ file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")
 file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/share")
 file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/share/doc")
 
-vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/expat_external.h" "defined(_MSC_EXTENSIONS)" "defined(_WIN32)")
+vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/expat_external.h" "defined(_MSC_VER)" "defined(_WIN32)")
 if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
     vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/expat_external.h" "! defined(XML_STATIC)" "0")
 endif()

ports/expat/vcpkg.json

@@ -1,6 +1,6 @@
 {
   "name": "expat",
-  "version": "2.7.3",
+  "version": "2.7.4",
   "description": "XML parser library written in C",
   "homepage": "https://github.com/libexpat/libexpat",
   "license": "MIT",

versions/baseline.json

@@ -2833,7 +2833,7 @@
       "port-version": 1
     },
     "expat": {
-      "baseline": "2.7.3",
+      "baseline": "2.7.4",
       "port-version": 0
     },
     "expected-lite": {

versions/e-/expat.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "b28c1648f06f91a7b588eee66069d3c1b24c44a1",
+      "version": "2.7.4",
+      "port-version": 0
+    },
     {
       "git-tree": "1f334673a6e31a6887fa5377a330e436b4f1f6a7",
       "version": "2.7.3",