[0.71] Update V8 JSI version to 0.71.8 (#12043)

* Update V8 JSI version to 0.71.8

* Change files

Author: vmoroz

change/react-native-windows-3830c060-3a1d-4649-b97e-65f622437cc1.json

@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "Update V8 JSI version to 0.71.8",
+  "packageName": "react-native-windows",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}

vnext/PropertySheets/JSEngine.props

@@ -24,7 +24,7 @@
     <EnableDevServerHBCBundles Condition="'$(EnableDevServerHBCBundles)' == ''">false</EnableDevServerHBCBundles>
 
     <UseV8 Condition="'$(UseV8)' == ''">false</UseV8>
-    <V8Version Condition="'$(V8Version)' == ''">0.71.7</V8Version>
+    <V8Version Condition="'$(V8Version)' == ''">0.71.8</V8Version>
     <V8PackageName>ReactNative.V8Jsi.Windows</V8PackageName>
     <V8PackageName Condition="'$(V8AppPlatform)' != 'win32'">$(V8PackageName).UWP</V8PackageName>
     <V8Package>$(NuGetPackageRoot)\$(V8PackageName).$(V8Version)</V8Package>