Default IPC path is incorrect on Windows with Anaconda 2023.07

[web3dev2023]

• Version: 6.6.1
• Python: 3.11
• OS: win

I updated my Anaconda to the latest version recently, which uses Python 3.11.
web3.py is no longer able to set the default IPC path for IPCProvider on Windows. The problem and fix are as follows:

In ipc.py, line 105
ipc_path = os.path.join("\\\\", ".", "pipe", "geth.ipc")
makes the default IPC path '\\\\\\.\\pipe\\geth.ipc', which cannot be found with os.path.exists(ipc_path) in the next line

How can it be fixed?

In ipc.py, replace line 105
ipc_path = os.path.join("\\\\", ".", "pipe", "geth.ipc")
with
ipc_path = '\\\.\pipe\geth.ipc' as is described in the documentation.

### Tasks

[pacrob]

Thanks for the issue @web3dev2023 ! PR incoming. It looks like it should actually be '\\.\pipe\geth.ipc' per the geth docs, so fixed that too.