feat: add link to migration guide > props data

Author: naokie

src/.vuepress/config.js

@@ -195,7 +195,7 @@ const sidebar = {
         '/guide/migration/keycode-modifiers',
         '/guide/migration/listeners-removed',
         // '/guide/migration/mount-changes',
-        // '/guide/migration/props-data',
+        '/guide/migration/props-data',
         '/guide/migration/props-default-this',
         '/guide/migration/render-function-api',
         '/guide/migration/slots-unification',