[3007.x] fix regression in master publish ipc socket

[Sxderp]

Fixes #66228

Though the sockets /may/ need to be deleted or permission changed if they already exist. Not sure if the code will change the permissions when websocket / tcp transport is selected.

[Sxderp]

I see the needs testcase has been added. I'll try and figure that out. I'm not confident in my understanding of the test suite. I think that I'll need a test case for each transport to ensure that each one creates a permissive socket. Am I on the right track?

If you could point me to some similar tests that would be helpful.

I'm also not sure how to ensure that the socket doesn't already exist due to previous tests. I guess I just delete the file before the start of the tests?

[Sxderp]

I believe I have some working tests. A few things to point out.

1. These's a lot of duplicated code. I don't know how to minimize this in a test environment.
2. There are no websocket tests. I created some but websockets are broken and need additional code to actually work. I might be able to submit a PR for that, but there's some oddities with websockets. Like async functions that never get awaited / finished. I find this confusing because both tornado and asyncio are being used.

[Sxderp]

Closing in favor of #66805