Merge queue is stuck waiting for workers

[nicolasstucki]

It seems that all tests in the queue are stuck waiting for workers. They also time out from the queue after 12 hours.

https://github.com/lampepfl/dotty/queue/main

See

• Do not run CI on pushes to github queues #16913
• Add regression test #16862
• Harden tpd.Apply/TypeApply in case of errors #16887
• Fix Splicer.isEscapedVariable #16838

[nicolasstucki]

Now merges are failing even if the tests are passing.

[Kordyjan]

I disabled the queue. It behaves unpredictably. I hope I soon will be able to experiment with it on other repository and enable it again.