Fix fromVitest conditional (#7260)

* Fix `fromVitest` conditional

Checking for `/node_modules/vitest/` does not work with Yarn's pnpm linker, where the path is something like `node_modules/.store/vitest-virtual-ee893ec3ea/`

* Use regex instead

* Create lemon-deers-speak.md

* fixup! Create lemon-deers-speak.md

---------

Co-authored-by: Somhairle MacLeòid <[email protected]>
Co-authored-by: Peter Bacon Darwin <[email protected]>

Author: 3 people

.changeset/lemon-deers-speak.md

@@ -0,0 +1,5 @@
+---
+"@cloudflare/vitest-pool-workers": patch
+---
+
+Support Yarn `.store` directory

packages/vitest-pool-workers/src/worker/index.ts

@@ -71,7 +71,9 @@ const monkeypatchedSetTimeout = (...args: Parameters<typeof setTimeout>) => {
 	const [callback, delay, ...restArgs] = args;
 	const callbackName = args[0]?.name ?? "";
 	const callerFileName = getCallerFileName(monkeypatchedSetTimeout);
-	const fromVitest = callerFileName?.includes("/node_modules/vitest/");
+	const fromVitest = /\/node_modules\/(\.store\/)?vitest/.test(
+		callerFileName ?? ""
+	);
 
 	// If this `setTimeout()` isn't from Vitest, or has a non-zero delay,
 	// just call the original function