Switch to `pyvnc` for IB reset hackz

It actually works for vncAuth(2) (thank god!) which the previous
`asyncvnc` **did not**, and seems to be mostly based on the work
from the `asyncvnc` author anyway (so all my past efforts don't seem to
have been in vain XD).

NOTE, the below deats ended up being factored in earlier into the
`pyproject.toml` alongside nix(os) support needed for testing and
landing this history. As the such, the comments are the originals but
the changes are not.

Deats,
- switch to `pyvnc` async API (using `asyncio` again obvi) in
  `.ib._util._vnc_click_hack()`.
- add `pyvnc` as src installed dep from GH.
- drop `asyncvnc` as dep.

Other,
- update `pytest` version range to avoid weird auto-load plugin exposed
  by `xonsh`?
- add a `tool.pytest.ini_options` to project file with vars to,
  - disable that^ `xonsh` plug using `addopts = '-p no:xonsh'`.
  - set a `testpaths` to avoid running anything but that subdir.
  - try out the `'progress'` style console output (does it work?).

piker/brokers/ib/_util.py

@@ -197,15 +197,20 @@ async def vnc_click_hack(
 ) -> None:
     '''
     Reset the data or network connection for the VNC attached
-    ib gateway using magic combos.
+    ib-gateway using a (magic) keybinding combo.
 
     '''
     try:
-        import asyncvnc
+        from pyvnc import (
+            AsyncVNCClient,
+            VNCConfig,
+            Point,
+            MOUSE_BUTTON_LEFT,
+        )
     except ModuleNotFoundError:
         log.warning(
             "In order to leverage `piker`'s built-in data reset hacks, install "
-            "the `asyncvnc` project: https://github.com/barneygale/asyncvnc"
+            "the `pyvnc` project: https://github.com/regulad/pyvnc.git"
         )
         return
 
@@ -216,24 +221,27 @@ async def vnc_click_hack(
         'connection': 'r'
     }[reset_type]
 
-    async with asyncvnc.connect(
-        host,
-        port=port,
-
-        # TODO: doesn't work?
-        # see, https://github.com/barneygale/asyncvnc/issues/7
-        password='doggy',
-
-    ) as client:
-
-        # move to middle of screen
-        # 640x1800
-        client.mouse.move(
-            x=500,
-            y=500,
+    with tractor.devx.open_crash_handler():
+        client = await AsyncVNCClient.connect(
+            VNCConfig(
+                host=host,
+                port=port,
+                password='doggy',
+            )
         )
-        client.mouse.click()
-        client.keyboard.press('Ctrl', 'Alt', key)  # keys are stacked
+        async with client:
+            # move to middle of screen
+            # 640x1800
+            await client.move(
+                Point(
+                    500,
+                    500,
+                )
+            )
+            # ensure the ib-gw window is active
+            await client.click(MOUSE_BUTTON_LEFT)
+            # send the hotkeys combo B)
+            await client.press('Ctrl', 'Alt', key)  # keys are stacked
 
 
 def i3ipc_fin_wins_titled(