Start running synchronous tests, separate from asyncio tests

[AlanCoding]

Fixes #9

I described in more recent issues - the intent would be to ultimately replace all the existing async tests.

This has a nasty warning:

/home/alancoding/venvs/awx/lib64/python3.12/site-packages/psycopg/_connection_base.py:146: ResourceWarning: connection <psycopg.Connection [IDLE] (host=localhost port=55777 user=dispatch database=dispatch_db) at 0x7efbef973710> was deleted while still open. Please use 'with' or '.close()' to close the connection

I expect that will be resolved with connection closing @art-tapin did in #121. Maybe.

Right now this test is slow, but the idea is that we'll start to reuse the fixture between tests and then it will start to go faster. The idea is also to reuse this in AWX and eda-server.

[AlanCoding]

Tests are timeouts.

I suspect, though I do not know, this might be because I didn't call process.close(). It is also the first time we ran both subprocess and asyncio tests in the same run, so it may also not be surprising that we hit new hangs in this situation. But it's hard to clean up processes.