test_blocking_command_client_pause

See failure in https://github.com/dragonflydb/dragonfly/actions/runs/12780733885/job/35627503311#step:6:807

```

async def lpush_command():
await async_client.execute_command("lpush src value")

blpop = asyncio.create_task(blpop_command())
brpoplpush = asyncio.create_task(brpoplpush_command())
await asyncio.sleep(0.1)

res = await async_client.execute_command("client pause 1000")
assert res == "OK"

lpush = asyncio.create_task(lpush_command())
assert not lpush.done()

await lpush
> await brpoplpush

dragonfly/connection_test.py:956:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

async def brpoplpush_command():
res = await async_client.execute_command("brpoplpush src dest7 2")
> assert res == "value"
E AssertionError: assert equals failed
E None 'value'

```

Start by running the failing test test_blocking_command_client_pause in dragonfly/connection_test.py and inspect the setup around line 956. Trace the CLIENT PAUSE interaction with the blocking BRPOPLPUSH command; done means the command returns "value" and the test passes consistently.

Written by the indexing model from the issue text.