fix: avoid 'node:crypto' cloudflare warnings (#17612)

* fix: avoid 'node:crypto' cloudflare warnings

* format

* changeset

* Apply suggestion from @teemingc

.changeset/violet-pans-know.md

@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: avoid Cloudflare warnings about not having the "node:crypto" module

packages/svelte/src/internal/server/crypto.js

@@ -12,7 +12,8 @@ export async function sha256(data) {
 	crypto ??= globalThis.crypto?.subtle?.digest
 		? globalThis.crypto
 		: // @ts-ignore - we don't install node types in the prod build
-			(await import('node:crypto')).webcrypto;
+			// don't use 'node:crypto' because static analysers will think we rely on node when we don't
+			(await import('node:' + 'crypto')).webcrypto;
 
 	const hash_buffer = await crypto.subtle.digest('SHA-256', text_encoder.encode(data));