Relax the file server test timeouts and remove the link to the instal…

…lation screencasts as they are now obsolete

README.md

@@ -23,8 +23,6 @@ Afterward do endeavor to read the docs: **`yakut --help`**
 
 Check for new versions every now and then: **`pip install --upgrade yakut`**
 
-Installation & configuration screencasts are available for [Windows](https://forum.opencyphal.org/t/screencast-of-installing-configuring-yakut/1197/2?u=pavel.kirienko), [GNU/Linux](https://forum.opencyphal.org/t/screencast-of-installing-configuring-yakut/1197/1?u=pavel.kirienko), and [macOS](https://www.youtube.com/watch?v=dQw4w9WgXcQ).
-
 ### Additional third-party tools
 
 Since Yakut heavily relies on YAML/JSON documents exchanged via stdin/stdout, [**`jq`**](https://stedolan.github.io/jq/) is often needed for any non-trivial usage of the tool, so consider installing it as well. Users of GNU/Linux will likely find it in the default software repositories (`pacman -S jq`, `apt install jq`, etc.).

tests/cmd/file_server.py

@@ -48,7 +48,7 @@ async def _unittest_file_server_pnp(compiled_dsdl: typing.Any) -> None:
         ),
     )
     try:
-        fc = FileClient(cln_node, 42, response_timeout=15.0)
+        fc = FileClient(cln_node, 42, response_timeout=30.0)  # Large timeout is needed for Windows CI.
         await asyncio.sleep(3.0)  # Let the server initialize.
         assert srv_proc.alive