fix: patch handleHotUpdate properly (#2903)

While the current patch code works fine as `this` is `undefined` for
current Vite, Vite 7+ will pass the context
(vitejs/vite#19936) and the current code doesn't
work anymore.
This PR changes the code to call the hook function with the original
`this`.

This PR should fix the ecosystem-ci failure.

https://github.com/vitejs/vite-ecosystem-ci/actions/runs/15291891294/job/43012757742#step:8:3335

Author: sapphi-red

core/src/vite/vite-manager.ts

@@ -613,8 +613,8 @@ function replaceHandleHotUpdate(reader: Reader, plugins: vite.Plugin[]) {
         : plugin.handleHotUpdate.handler;
     return {
       ...plugin,
-      handleHotUpdate: async (ctx: vite.HmrContext) => {
-        await handleHotUpdate({
+      handleHotUpdate: async function (ctx: vite.HmrContext) {
+        await handleHotUpdate.call(this, {
           ...ctx,
           read: async () => {
             const entry = await reader.read(ctx.file);