fix(ci): disable KVM acceleration for GitHub Actions runner

Author: YanLien

.github/workflows/qemu-x86_64.toml

@@ -13,7 +13,8 @@ args = [
 #   "-accel",
 #   "kvm",
   "-cpu",
-  "host",
+  "max"
+#   "host",
 ]
 fail_regex = []
 success_regex = ["usertests passed!"]