pubbot: Change donation firehose stream

```
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/usr/lib/python3.11/site-packages/api_ping/__main__.py", line 3, in <module>
    gevent.monkey.patch_all()
  File "/usr/lib/python3.11/site-packages/gevent/monkey.py", line 1255, in patch_all
    _notify_patch(events.GeventWillPatchAllEvent(modules_to_patch, kwargs), _warnings)
  File "/usr/lib/python3.11/site-packages/gevent/monkey.py", line 190, in _notify_patch
    notify_and_call_entry_points(event)
  File "/usr/lib/python3.11/site-packages/gevent/events.py", line 104, in notify_and_call_entry_points
    subscriber = plugin.load()
                 ^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/pkg_resources/__init__.py", line 2745, in load
    self.require(*args, **kwargs)  # type: ignore
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/pkg_resources/__init__.py", line 2773, in require
    items = working_set.resolve(reqs, env, installer, extras=self.extras)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/pkg_resources/__init__.py", line 889, in resolve
    dist = self._resolve_dist(
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/pkg_resources/__init__.py", line 930, in _resolve_dist
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'zope.event' distribution was not found and is required by the application
```

god i hate python packaging.

api_ping/Dockerfile

@@ -7,7 +7,7 @@ RUN apk --update add py3-pip g++ python3-dev libffi-dev musl-dev file make busyb
 RUN pip install --upgrade pip wheel
 
 # Install gevent so that we don't need to re-install it when common changes
-RUN pip install gevent==22.10.2
+RUN pip install gevent
 
 # Install common lib first as it changes less
 COPY common /tmp/common

zulip_bots/zulip_bots/pubbot.py

@@ -157,7 +157,7 @@ def main(conf_file, message_log_file, name=socket.gethostname()):
 				logging.info("New donation total: {}{}{}".format(msg["d"], increase_str, entries_str))
 				total = msg["d"]
 				if increase is not None and increase > 0:
-					client.send_to_stream("bot-spam", "Donation Firehose", "Donation total is now ${:.2f}{}{}".format(msg["d"], increase_str, entries_str))
+					client.send_to_stream("firehose", "Donations", "Donation total is now ${:.2f}{}{}".format(msg["d"], increase_str, entries_str))
 				if increase is not None and increase >= 500:
 					client.send_to_stream("bot-spam", "Notable Donations", "Large donation of ${:.2f} (total ${:.2f}){}".format(increase, msg['d'], entries_str))