Wire `test_dynamic_pub_sub` to standard fixtures

Pull in the `reg_addr`, `debug_mode`, and `test_log`
fixtures so this test follows the same conventions as
the rest of the suite:

- pass `registry_addrs=[reg_addr]` + `debug_mode` into
  `tractor.open_nursery()` (so `--tpdb` etc work).
- after the `pytest.raises` block, add `assert err` +
  `test_log.exception('Timed out AS EXPECTED')` so the
  expected timeout is logged explicitly instead of
  swallowed.

Also,
- drop whitespace-only blank lines around the
  `subs` param of `consumer()` and `ctx` param of
  `one_task_streams_and_one_handles_reqresp()`.
- promote `test_sigint_both_stream_types`'s one-line
  docstring to multi-line form.

(this commit msg was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code

tests/test_advanced_streaming.py

@@ -76,9 +76,7 @@ async def subscribe(
 
 
 async def consumer(
-
     subs: list[str],
-
 ) -> None:
 
     uid = tractor.current_actor().uid
@@ -108,15 +106,21 @@ async def consumer(
                         print(f'{uid} got: {value}')
 
 
-def test_dynamic_pub_sub():
-
+def test_dynamic_pub_sub(
+    reg_addr: tuple,
+    debug_mode: bool,
+    test_log: tractor.log.StackLevelAdapter,
+):
     global _registry
 
     from multiprocessing import cpu_count
     cpus = cpu_count()
 
     async def main():
-        async with tractor.open_nursery() as n:
+        async with tractor.open_nursery(
+            registry_addrs=[reg_addr],
+            debug_mode=debug_mode,
+        ) as n:
 
             # name of this actor will be same as target func
             await n.run_in_actor(publisher)
@@ -155,12 +159,13 @@ def test_dynamic_pub_sub():
             else:
                 pytest.fail('Never got a `TooSlowError` ?')
 
+        assert err
+        test_log.exception('Timed out AS EXPECTED')
+
 
 @tractor.context
 async def one_task_streams_and_one_handles_reqresp(
-
     ctx: tractor.Context,
-
 ) -> None:
 
     await ctx.started()
@@ -257,7 +262,8 @@ async def echo_ctx_stream(
 
 
 def test_sigint_both_stream_types():
-    '''Verify that running a bi-directional and recv only stream
+    '''
+    Verify that running a bi-directional and recv only stream
     side-by-side will cancel correctly from SIGINT.
 
     '''