✅ test: fix failing csrf test

A test validating that expired tokens fail was hitting a race condition
with garbage collection. Sometimes, an assertion that expects memory
storage GC to have triggered happens too quickly, causing the assertion
to fail. Give the GC a little bit more time to process before asserting.

middleware/csrf/csrf_test.go

@@ -186,7 +186,7 @@ func Test_CSRF_ExpiredToken(t *testing.T) {
 	utils.AssertEqual(t, 200, ctx.Response.StatusCode())
 
 	// Wait for the token to expire
-	time.Sleep(1 * time.Second)
+	time.Sleep(1250*time.Millisecond)
 
 	// Expired CSRF token
 	ctx.Request.Reset()