fix: avoid file import that is incompatible with Windows (#13495)

* fix: avoid file import that is incompatible with Windows

* add changeset

* Update packages/adapter-netlify/index.js

* Update .changeset/eight-walls-melt.md

---------

Co-authored-by: Tee Ming <[email protected]>

Author: Aldthony

.changeset/eight-walls-melt.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-netlify': patch
+---
+
+fix: correctly import manifest on Windows machines

packages/adapter-netlify/index.js

@@ -143,7 +143,8 @@ async function generate_edge_functions({ builder }) {
 	writeFileSync(`${tmp}/manifest.js`, `export const manifest = ${manifest};\n`);
 
 	/** @type {{ assets: Set<string> }} */
-	const { assets } = (await import(`${tmp}/manifest.js`)).manifest;
+  // we have to prepend the file:// protocol because Windows doesn't support absolute path imports
+	const { assets } = (await import(`file://${tmp}/manifest.js`)).manifest;
 
 	const path = '/*';
 	// We only need to specify paths without the trailing slash because