Test fails if voyager.lemmy.ml is down

[Nutomic]

https://woodpecker.join-lemmy.org/repos/129/pipeline/8068/19

test scheduled_tasks::tests::test_nodeinfo_voyager_lemmy_ml ... FAILED
failures:
---- scheduled_tasks::tests::test_nodeinfo_voyager_lemmy_ml stdout ----
Error: LemmyError { message: CouldntFindObject, inner: CouldntFindObject
Stack backtrace:
   0: anyhow::error::<impl anyhow::Error>::msg
   1: <lemmy_utils::error::LemmyError as core::convert::From<lemmy_utils::error::LemmyErrorType>>::from
   2: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
   3: lemmy_server::scheduled_tasks::tests::test_nodeinfo_voyager_lemmy_ml::{{closure}}::{{closure}}
   4: <core::pin::Pin<P> as core::future::future::Future>::poll
   5: <core::pin::Pin<P> as core::future::future::Future>::poll
   6: tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::{{closure}}::{{closure}}
   7: tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::{{closure}}
   8: tokio::runtime::scheduler::current_thread::Context::enter
   9: tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}
  10: tokio::runtime::scheduler::current_thread::CoreGuard::enter::{{closure}}
  11: tokio::runtime::context::scoped::Scoped<T>::set
  12: tokio::runtime::context::set_scheduler::{{closure}}
  13: std::thread::local::LocalKey<T>::try_with
  14: std::thread::local::LocalKey<T>::with
  15: tokio::runtime::context::set_scheduler
  16: tokio::runtime::scheduler::current_thread::CoreGuard::enter
  17: tokio::runtime::scheduler::current_thread::CoreGuard::block_on
  18: tokio::runtime::scheduler::current_thread::CurrentThread::block_on::{{closure}}
  19: tokio::runtime::context::runtime::enter_runtime
  20: tokio::runtime::scheduler::current_thread::CurrentThread::block_on
  21: tokio::runtime::runtime::Runtime::block_on
  22: lemmy_server::scheduled_tasks::tests::test_nodeinfo_voyager_lemmy_ml::{{closure}}
  23: core::ops::function::FnOnce::call_once
  24: serial_test::serial_code_lock::local_serial_core_with_return
  25: lemmy_server::scheduled_tasks::tests::test_nodeinfo_voyager_lemmy_ml
  26: lemmy_server::scheduled_tasks::tests::test_nodeinfo_voyager_lemmy_ml::{{closure}}
  27: core::ops::function::FnOnce::call_once
  28: test::__rust_begin_short_backtrace
  29: test::run_test::{{closure}}
  30: std::sys_common::backtrace::__rust_begin_short_backtrace
  31: core::ops::function::FnOnce::call_once{{vtable.shim}}
  32: std::sys::pal::unix::thread::Thread::new::thread_start
  33: <unknown>
  34: clone, context: SpanTrace [] }

Tests shouldnt rely on any external servers. Or at least it should be changed to use lemmy.ml, because a test instance is more likely to be down.

[dessalines]

I originally couldn't test using lemmy.ml, because that fix hadn't been deployed yet. But I think I can do it now.